Case select and end select in fortran iv examples pdf

Case select and end select in fortran iv examples pdf
Both of the following references describe FORTRAN programming in the age of punched cards and FORTRAN IV, and are well-written. They would still be good introductions to the subject, and contain many examples. Of course, they are long out of print, but should be preserved.
Side Effects. An external function is supposed to return exactly one value via the function name. However, it is permitted for the function to have ‘side effects’, that is, for the function to alter the values of the actual arguments or of variables appearing in COMMON blocks.
An optimizing compiler like FORTRAN would most likely select the more compact and usually faster Transfers instead of the Compare (use of Transfers also allowed the FREQUENCY statement to optimize IF s, which could not be done using the Compare).
1. Fortran is far from dead, and can easily be used for Win32 programs featuring any GUI feature, but to do this you need to learn the Win32 message-pump architecture (for which you study Petzold, not Lawrence), and write complete Win32 code in which you explicitly handle your own message loops (ie, forget Quickwin).
Fortran 90 Lecture 5 AS 3013 1 Fortran 90 Arrays •To store lists of data, all of the same type, use arrays.
554027 Modern Fortran Programming for Chemists and Physicists Dr Pekka Manninen manninen@cray.com
SELECT CASE (selector) CASE (list #1) statements CASE (list #2) statements. . . CASE DEFAULT statements END SELECT The selector may be an integer, character, or logical expression.
Fortran (/ ˈ f ɔːr t r æ n /; formerly FORTRAN, derived from Formula Translation) is a general-purpose, compiled imperative programming language that is especially suited to numeric computation and scientific computing.
A brief history of Fortran (and FORTRAN) •developed in the 1950’s by IBM •FOR(mula) TRAN(slation): written for doing Maths! •Prior to FORTRAN, most code was written in assembly language (i.e., machine

Statement level control structures Bilkent University

Fortran personalpages.manchester.ac.uk
3 Fortran 90 (1991) Added • Free format source code form ( up to 132 columns per line) • More than one statement per line • Inline comments • Upper and lower case letters
Chapter 1 3rd Generation Languages for Statistics (by G. Mélard) 1.0 INTRODUCTION FORTRAN History Fortran IV 1966 change programs if possible Fortran 77 1978 just read them
Fortran Quick Reference/Cheat Sheet Remember: FORTRAN 77 and below is case sensitive. Fortran 90 and above is NOT case sensitive. Introduction Important things to note are: • Fortran can perform array arithmetic operations. • Spaces are ignored? • Fortran is a compiled language which is compiled into an executable • Blue text indicates a feature which is available from Fortran 90
Oldest version still in use is Fortran IV, and Fortran 66. Most commonly used versions today are : Fortran 77, Fortran 90, and Fortran 95. Fortran 77 added strings as a distinct type.
A brief history of Fortran (and FORTRAN) • developed in the 1950’s by IBM • FOR(mula) TRAN(slation): written for doing Maths! • Prior to FORTRAN, most code …
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45 Example of reduction 46 Example of inquiry 46 Example of construction 46 Example of location 47 Exercises 51 Control statements 51 Conditional statements 51 IF statement and construct 53 SELECT CASE construct 53 GOTO 54 Repetition 54 DO construct 55 Transferring Control 56 Nesting 56 Exercises 59 Program units 59 Program structure 60 The main program 60 Procedures 61 Actual and …
Block IF. The block IF statement is a more general version of the simple logical IF and can take several forms, depending on the complexity of the decisions and/or branching.
709/7090 FORTRAN therefore, in effect, transforms the IBM 709/7090 into a machine with which communication can be made in a language more concise and …
Decisions The IF THEN Statement. Decisions in FORTRAN are accomplished with an IF-THEN program structure. Usually the block of code affected by the decision is indented to make it stand out from the rest of the program.
That “FORTRAN IV” code is also perfectly valid Fortran 95 or F2003. It’s actually F77, as the F66 interpretation of EXTERNAL isn’t compatible with F77. It’s actually F77, as the F66 interpretation of EXTERNAL isn’t compatible with F77.
• A special case: Single-way selector: In most cases a subform of a two-way selector. FORTRAN IV has no two-way selector. • In FORTRAN this is called logical IF • FORTRAN: IF (boolean_expr) statement • Problem: can select only a single statement; to select more, a GOTO must be used, as in the following example IF (.NOT. condition) GOTO 20… 20 CONTINUE • Negative logic is bad for
Most modern Fortran compilers expect a file with a .f or .for extension (for FORTRAN 66 or FORTRAN 77 fixed-form source, although the FORTRAN 66 dialect may have to be selected specifically with a command-line option) or .f90/.f95 extension (for Fortran 90/95 free-form source, respectively).
Fortran Tutorial(1) Cargado por (logical expression) then statement end if However.Fortran select case construct A select case statement allows a variable to be tested for equality against a list of values. nested select case construct You can use one select case statement inside another select case statement(s). then the block of code inside the if…then statement will be executed. “a is
The Basic Problem REAL must be same size as INTEGER This is for historical reasons – ask if you care 32 bits allows integers of up to 2147483647

Learn form dissecting examples Get in touch with the dirty work Get some overview of advances topics Focus on principles and generic strategies Continued learning on individual basis This course just get you started – use textbooks, reference manuals and software examples from the internet for further work with projects Gunnar Wollan Introductory Fortran Programming. Motivation About Fortran
The first set of examples are for the Fortran II, IV, and 77 compilers. The remaining examples can be compiled and run with any newer standard Fortran compiler (see the end of the main Fortran article for lists of compilers). By convention most contemporary Fortran compilers select the language standard to use during compilation based on source code file name suffix: FORTRAN 77 for .f (or the
In many other programming languages, for example, the data type of each variable must be declared in advance. Fortran does not insist on this, so if you make a spelling mistake in a variable name, the compiler will probably use two variables when you plan to use only one. Such errors can be serious but are not always easy to detect.
1 Dr. Matthew D. Segall University of Cambridge Fortran90/5: A Bridge Between the Past and the Future Matthew Segall University of Cambridge. Dr. Matthew D. Segall University of Cambridge
The SELECT CASEStatement:Statement: 1/71/7 zFortran 90 has the SSSELECT CASEstatement for selective execution if the selection criteria are based on simpple values in INTEGER, LOGICAL and CHARACTER. No, REALis not applicable. SELECT CASE (selector) CASE (label-list-1) statements-1 CASE (label-list-2) 2 selector is an expression evaluated to an INTEGER, LOGICALor CHARACTERvalue statements-CASE
In 1962 a new version called Fortran IV emerged. This version had among it’s features the ability to read and write direct access file s and also had a new data-type called LOGICAL. This was a Boolean data-type withtwo states true or false. At the end of the seventies Fortran 77 was introduced. This version con-tained better loop and test structures. In 1992 Fortran 90 was formally
FORTRAN started out as IBM’s’ Mathematical Formula Translating System. It was designed by a team led by John Backus and targeted computationally intensive applications from physics to weather
An introduction to Fortran Monash University
Action: May be replaced by the SELECT CASE structure, which is more powerful and does not involve the risk of failing to include a GO TO statement in each clause to branch to the end. It also allows a case default section as a long-stop.
Fortran 1957 – 2008 : A Language with a Past, Present and Future Peter Crouch pccrouch@bcs.org.uk Chairman Fortran Specialist Group www.fortran.bcs.org BCS Birmingham Branch meeting 19 May 2008. My Background 1968 ­ 1984 Industrial research chemist. Started programming in BASIC and Pascal in the late 1970s. Began to to use FORTRAN in the early 1980s. 1985 ­ 2001 …
Fortran Lecture 1.1 1. Fortran Language Fortran is a high level computer language first invented in the 1950’s. Fortran IV, invented 1970, Fortran 77 used until Fortran 90/95. The latest version we have is SALFORD F90/95. Some features of Fortran were needed for older machines without VDUs, keyboards or mice. If you read old text books for Fortran 77, not all of the features will work with
Logical Assignment. v is the name of a variable, array element, or record field of type logical. e is a logical expression, or an integer between -128 and 127, or a single character constant.
The first set of examples are for the Fortran II, IV, and 77 compilers. Fortran/Fortran examples – Wikibooks, open books for an open world iii Preface The Fortran 90 Handbook is a destnitive and comprehensive guide to Fortran 90 and its use.
Basic Fortran 95/2003 Sami Ilvonen Sami Saarinen SELECT CASE ( i) CASE (2,3,5,7 ) is_prime_number = .TRUE. CASE (1,4,6,8:10 ) is_prime_number = .FALSE. CASE DEFAULT is_prime_number =test_prime_number (i) END SELECT Control structures: SELECT CASE SELECT CASE statements matches the entries of a list against the case index ± Only one found match is … – pdf les larmes d artamon de sarah ash 1962 IBM release Fortran IV for the 7030, 7090 and 7094; this removes some of the machine dependencies 1963 Most major US vendors have Fortran systems, either Fortran II or, increasingly, Fortran IV 1964 Technical work on the standard is complete. It is essentially a common subset of vendors’ offerings 1965 ICT have Fortran IV on the 1900 and English Electric have Egtran on the …
Interactive Fortran IV computer programs for the thermodynamic and transport properties of selected cryogens (fluids pack) by McCarty, Robert D. Topics Thermodynamics–Data processing. , Liquefied gases–Thermal properties–Data processing. , Low temperature research–Data processing.
Getting started with Fortran 1 Outline History of Fortran Variables and their assignment Control structures 2 Why to learn Fortran? Well suited for numerical computations
The REWIND statement positions the file associated with the specified unit to its initial point. The options can be specified in any order. Rewinding a unit not associated with any file has no effect. Likewise, REWIND in a terminal file has no effect either. Using a REWIND statement on a direct
This is likely down to your use of list-directed input. Here, * and / mean special things in terms of input. You could read up on using an explicit format.
First version 1954 FORTRAN 66 FORTRAN 77 Fortran 90 – Backwards compatible (The F programming language) Fortran 95 Fortran 2003, (2004)
In most books, the name of the language is spelled in upper-case, FOR- TRAN, because it is an acronym; the Fortran 90 Standards Committee has now recommended the spelling Fortran…
ADVERTISEMENTS: After reading this article you will learn about the classification of input-output (i/o) statements. 1. Input Statements: The digital computer can accept data from cards, tapes, disks or key-board. This process is called INPUT operation. The instruction in the FORTRAN program for an input operation is a statement that contains
end select where: expr is a scalar expression of type integer, logical or character (en closed in parentheses); evaluation of this expression results in a valu e called the case
Introduction to Computer Programming Using Fortran 95 Workbook Edition 3 January 2010 . Introduction to Computer Programming Using Fortran 95 A Student Guide January 2010 . 2 Acknowledgement DR. A C MARSHALL from the University of Liverpool (funded by JISC/NTI) first presented this material. He acknowledged Steve Morgan and Lawrie Schonfelder. Helen Talbot and Neil Hamilton-Smith took the
Example 1: Recursive Routines in FORTRAN 77 (and Fortran 90) First let me say that I think every serious Fortran programmer should always write new code in Fortran 90 or Fortran 95, but for those of you stuck on a desert island with only a FORTRAN 77 compiler at your disposal, here’s a way to write a recursive subroutine.
A Fortran 2003 introduction by examples. Gunnar Wollan 2012 1 Introduction The purpose of this book is to give a good insight in the Fortran 2003 programming language.by going through a number of examples showing how computational problems and the reading and writing data to files can be solved.
Fortran Functions and Subroutines
For example, although FORTRAN IV had IF statements (including three-way IF statements), it wasn’t until FORTRAN 77 that ELSE and ELSE IF functions were allowed. It also greatly advanced file I/O and character processing abilities.
7 FORTRAN evolution ! FORTRAN I (released in 1957 by IBM) ! FORTRAN II (1958, separate compile & link) ! FORTRAN IV (1961. Machine independent.)
If all logical expressions are .FALSE. and if ELSE is there, Fortran executes the statements-ELSE; otherwise, Fortran executes the statement after the END IF. Note that the statements in the THEN section, ELSE IF section, and ELSE section can be another IF statement.
When this alternative code runs, then, for example, the code for Case 1 could set the condition for Case 2, and the code for Case 2 could then set the condition for Case 3, and the code at the end …
example, Fortran is popular with the scientific and engineering community, Cobol is used for business applications and C for systems programming. Logic programming involves the construction of a database with facts and rules and the program examines the database to locate one or more rule that apply with a given input. Functional programming involves the construction of functions. A function
12.010 Computational Methods of Scientific Programming Lecturers Thomas A Herring . Chris Hill . 9/15/2011 12.010 Lec 03 2 Review of Lecture 2 •Examined computer hardware •Computer basics and the main features of programs •Program design: Consider the case of calculating the area of an arbitrary n-sided polygon. –We had considered input of points that make up polynomial •Finish this
Subroutines and Functions. A complex and large computer program can be broken up into many more manageable subprograms. There is only one “main” program, the other subprograms are called subroutines or functions.
For example, one of IBM’s FORTRAN compilers SELECT. . . CASE construct for multi-way selection Portable specification of numerical precision under the user’s control New and enhanced intrinsic procedures. The much delayed successor to FORTRAN 77, informally known as Fortran 90 (and prior to that, Fortran 8X), was finally released as ISO/IEC standard 1539:1991 in 1991 and an ANSI …
All Fortran programs start with the keyword program and end with the keywordend program, followed by the name of the program. The implicit none statement allows the compiler to …
FORTRAN IV faded away Fortran 90 – ISO Standard 1991 The most extreme variants faded away Fortran 95 – ISO Standard 1996 Fortran 2003 – ISO Standard 2004 Fortran 2008 – expected in 2010 Introduction To Fortran Conversion – p. 5/?? Fortran Ancestry Fortran 77 Fortran 66 Fortran 90/95 Standards Fortran 2003 and others IBM Algol 68 Ada APL ICL DAP Others Introduction To Fortran
fortran’s death motorcyles and dialog boxes. Intel

Fortran 90 Tutorial Stanford University

ARapier a fortran IV program for multiple linear

What’s The Difference Between FORTRAN Now And Then

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Chapter 4 Statements (FORTRAN 77 Language Reference)

A Summary of Fortran Home – Math
ash vs the evil dead episode guide – Interactive Fortran IV computer programs for the
Chapter 1 3rd Generation Languages for Statistics (by G

FORTRAN 77 External Functions and Subroutines

Andy’s Fortran Examples Pennsylvania State University

Chapter 1 3rd Generation Languages for Statistics (by G
Interactive Fortran IV computer programs for the

FORTRAN IV faded away Fortran 90 – ISO Standard 1991 The most extreme variants faded away Fortran 95 – ISO Standard 1996 Fortran 2003 – ISO Standard 2004 Fortran 2008 – expected in 2010 Introduction To Fortran Conversion – p. 5/?? Fortran Ancestry Fortran 77 Fortran 66 Fortran 90/95 Standards Fortran 2003 and others IBM Algol 68 Ada APL ICL DAP Others Introduction To Fortran
The Basic Problem REAL must be same size as INTEGER This is for historical reasons – ask if you care 32 bits allows integers of up to 2147483647
Chapter 1 3rd Generation Languages for Statistics (by G. Mélard) 1.0 INTRODUCTION FORTRAN History Fortran IV 1966 change programs if possible Fortran 77 1978 just read them
In many other programming languages, for example, the data type of each variable must be declared in advance. Fortran does not insist on this, so if you make a spelling mistake in a variable name, the compiler will probably use two variables when you plan to use only one. Such errors can be serious but are not always easy to detect.
example, Fortran is popular with the scientific and engineering community, Cobol is used for business applications and C for systems programming. Logic programming involves the construction of a database with facts and rules and the program examines the database to locate one or more rule that apply with a given input. Functional programming involves the construction of functions. A function
A brief history of Fortran (and FORTRAN) • developed in the 1950’s by IBM • FOR(mula) TRAN(slation): written for doing Maths! • Prior to FORTRAN, most code …
The SELECT CASEStatement:Statement: 1/71/7 zFortran 90 has the SSSELECT CASEstatement for selective execution if the selection criteria are based on simpple values in INTEGER, LOGICAL and CHARACTER. No, REALis not applicable. SELECT CASE (selector) CASE (label-list-1) statements-1 CASE (label-list-2) 2 selector is an expression evaluated to an INTEGER, LOGICALor CHARACTERvalue statements-CASE
All Fortran programs start with the keyword program and end with the keywordend program, followed by the name of the program. The implicit none statement allows the compiler to …
Fortran Lecture 1.1 1. Fortran Language Fortran is a high level computer language first invented in the 1950’s. Fortran IV, invented 1970, Fortran 77 used until Fortran 90/95. The latest version we have is SALFORD F90/95. Some features of Fortran were needed for older machines without VDUs, keyboards or mice. If you read old text books for Fortran 77, not all of the features will work with

An introduction to Fortran users.monash.edu.au
ARapier a fortran IV program for multiple linear

The REWIND statement positions the file associated with the specified unit to its initial point. The options can be specified in any order. Rewinding a unit not associated with any file has no effect. Likewise, REWIND in a terminal file has no effect either. Using a REWIND statement on a direct
Both of the following references describe FORTRAN programming in the age of punched cards and FORTRAN IV, and are well-written. They would still be good introductions to the subject, and contain many examples. Of course, they are long out of print, but should be preserved.
Example 1: Recursive Routines in FORTRAN 77 (and Fortran 90) First let me say that I think every serious Fortran programmer should always write new code in Fortran 90 or Fortran 95, but for those of you stuck on a desert island with only a FORTRAN 77 compiler at your disposal, here’s a way to write a recursive subroutine.
Decisions The IF THEN Statement. Decisions in FORTRAN are accomplished with an IF-THEN program structure. Usually the block of code affected by the decision is indented to make it stand out from the rest of the program.
The SELECT CASEStatement:Statement: 1/71/7 zFortran 90 has the SSSELECT CASEstatement for selective execution if the selection criteria are based on simpple values in INTEGER, LOGICAL and CHARACTER. No, REALis not applicable. SELECT CASE (selector) CASE (label-list-1) statements-1 CASE (label-list-2) 2 selector is an expression evaluated to an INTEGER, LOGICALor CHARACTERvalue statements-CASE
An optimizing compiler like FORTRAN would most likely select the more compact and usually faster Transfers instead of the Compare (use of Transfers also allowed the FREQUENCY statement to optimize IF s, which could not be done using the Compare).
SELECT CASE (selector) CASE (list #1) statements CASE (list #2) statements. . . CASE DEFAULT statements END SELECT The selector may be an integer, character, or logical expression.

IF-THEN-ELSE IF-END IF Computer Science
dec pdp10 TOPS10 DEC-10-AFC0-D PDP-10 FORTRAN IV

Decisions The IF THEN Statement. Decisions in FORTRAN are accomplished with an IF-THEN program structure. Usually the block of code affected by the decision is indented to make it stand out from the rest of the program.
12.010 Computational Methods of Scientific Programming Lecturers Thomas A Herring . Chris Hill . 9/15/2011 12.010 Lec 03 2 Review of Lecture 2 •Examined computer hardware •Computer basics and the main features of programs •Program design: Consider the case of calculating the area of an arbitrary n-sided polygon. –We had considered input of points that make up polynomial •Finish this
Fortran Lecture 1.1 1. Fortran Language Fortran is a high level computer language first invented in the 1950’s. Fortran IV, invented 1970, Fortran 77 used until Fortran 90/95. The latest version we have is SALFORD F90/95. Some features of Fortran were needed for older machines without VDUs, keyboards or mice. If you read old text books for Fortran 77, not all of the features will work with
This is likely down to your use of list-directed input. Here, * and / mean special things in terms of input. You could read up on using an explicit format.
If all logical expressions are .FALSE. and if ELSE is there, Fortran executes the statements-ELSE; otherwise, Fortran executes the statement after the END IF. Note that the statements in the THEN section, ELSE IF section, and ELSE section can be another IF statement.
Logical Assignment. v is the name of a variable, array element, or record field of type logical. e is a logical expression, or an integer between -128 and 127, or a single character constant.
Interactive Fortran IV computer programs for the thermodynamic and transport properties of selected cryogens (fluids pack) by McCarty, Robert D. Topics Thermodynamics–Data processing. , Liquefied gases–Thermal properties–Data processing. , Low temperature research–Data processing.
3 Fortran 90 (1991) Added • Free format source code form ( up to 132 columns per line) • More than one statement per line • Inline comments • Upper and lower case letters
When this alternative code runs, then, for example, the code for Case 1 could set the condition for Case 2, and the code for Case 2 could then set the condition for Case 3, and the code at the end …
In most books, the name of the language is spelled in upper-case, FOR- TRAN, because it is an acronym; the Fortran 90 Standards Committee has now recommended the spelling Fortran…
Example 1: Recursive Routines in FORTRAN 77 (and Fortran 90) First let me say that I think every serious Fortran programmer should always write new code in Fortran 90 or Fortran 95, but for those of you stuck on a desert island with only a FORTRAN 77 compiler at your disposal, here’s a way to write a recursive subroutine.

Introduction to Fortran 90/95/2003 LTH
IOP Fortran talk University of York

• A special case: Single-way selector: In most cases a subform of a two-way selector. FORTRAN IV has no two-way selector. • In FORTRAN this is called logical IF • FORTRAN: IF (boolean_expr) statement • Problem: can select only a single statement; to select more, a GOTO must be used, as in the following example IF (.NOT. condition) GOTO 20… 20 CONTINUE • Negative logic is bad for
Basic Fortran 95/2003 Sami Ilvonen Sami Saarinen SELECT CASE ( i) CASE (2,3,5,7 ) is_prime_number = .TRUE. CASE (1,4,6,8:10 ) is_prime_number = .FALSE. CASE DEFAULT is_prime_number =test_prime_number (i) END SELECT Control structures: SELECT CASE SELECT CASE statements matches the entries of a list against the case index ± Only one found match is …
The first set of examples are for the Fortran II, IV, and 77 compilers. Fortran/Fortran examples – Wikibooks, open books for an open world iii Preface The Fortran 90 Handbook is a destnitive and comprehensive guide to Fortran 90 and its use.
Fortran 1957 – 2008 : A Language with a Past, Present and Future Peter Crouch pccrouch@bcs.org.uk Chairman Fortran Specialist Group www.fortran.bcs.org BCS Birmingham Branch meeting 19 May 2008. My Background 1968 ­ 1984 Industrial research chemist. Started programming in BASIC and Pascal in the late 1970s. Began to to use FORTRAN in the early 1980s. 1985 ­ 2001 …
When this alternative code runs, then, for example, the code for Case 1 could set the condition for Case 2, and the code for Case 2 could then set the condition for Case 3, and the code at the end …
Example 1: Recursive Routines in FORTRAN 77 (and Fortran 90) First let me say that I think every serious Fortran programmer should always write new code in Fortran 90 or Fortran 95, but for those of you stuck on a desert island with only a FORTRAN 77 compiler at your disposal, here’s a way to write a recursive subroutine.
Oldest version still in use is Fortran IV, and Fortran 66. Most commonly used versions today are : Fortran 77, Fortran 90, and Fortran 95. Fortran 77 added strings as a distinct type.

ARapier a fortran IV program for multiple linear
Fortran Tutorial(1) Data Type C (Programming Language)

In most books, the name of the language is spelled in upper-case, FOR- TRAN, because it is an acronym; the Fortran 90 Standards Committee has now recommended the spelling Fortran…
Fortran Tutorial(1) Cargado por (logical expression) then statement end if However.Fortran select case construct A select case statement allows a variable to be tested for equality against a list of values. nested select case construct You can use one select case statement inside another select case statement(s). then the block of code inside the if…then statement will be executed. “a is
1. Fortran is far from dead, and can easily be used for Win32 programs featuring any GUI feature, but to do this you need to learn the Win32 message-pump architecture (for which you study Petzold, not Lawrence), and write complete Win32 code in which you explicitly handle your own message loops (ie, forget Quickwin).
Side Effects. An external function is supposed to return exactly one value via the function name. However, it is permitted for the function to have ‘side effects’, that is, for the function to alter the values of the actual arguments or of variables appearing in COMMON blocks.
When this alternative code runs, then, for example, the code for Case 1 could set the condition for Case 2, and the code for Case 2 could then set the condition for Case 3, and the code at the end …
A brief history of Fortran (and FORTRAN) • developed in the 1950’s by IBM • FOR(mula) TRAN(slation): written for doing Maths! • Prior to FORTRAN, most code …
Basic Fortran 95/2003 Sami Ilvonen Sami Saarinen SELECT CASE ( i) CASE (2,3,5,7 ) is_prime_number = .TRUE. CASE (1,4,6,8:10 ) is_prime_number = .FALSE. CASE DEFAULT is_prime_number =test_prime_number (i) END SELECT Control structures: SELECT CASE SELECT CASE statements matches the entries of a list against the case index ± Only one found match is …
Introduction to Computer Programming Using Fortran 95 Workbook Edition 3 January 2010 . Introduction to Computer Programming Using Fortran 95 A Student Guide January 2010 . 2 Acknowledgement DR. A C MARSHALL from the University of Liverpool (funded by JISC/NTI) first presented this material. He acknowledged Steve Morgan and Lawrie Schonfelder. Helen Talbot and Neil Hamilton-Smith took the
ADVERTISEMENTS: After reading this article you will learn about the classification of input-output (i/o) statements. 1. Input Statements: The digital computer can accept data from cards, tapes, disks or key-board. This process is called INPUT operation. The instruction in the FORTRAN program for an input operation is a statement that contains
Logical Assignment. v is the name of a variable, array element, or record field of type logical. e is a logical expression, or an integer between -128 and 127, or a single character constant.

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Oldest version still in use is Fortran IV, and Fortran 66. Most commonly used versions today are : Fortran 77, Fortran 90, and Fortran 95. Fortran 77 added strings as a distinct type.
Fortran Lecture 1.1 1. Fortran Language Fortran is a high level computer language first invented in the 1950’s. Fortran IV, invented 1970, Fortran 77 used until Fortran 90/95. The latest version we have is SALFORD F90/95. Some features of Fortran were needed for older machines without VDUs, keyboards or mice. If you read old text books for Fortran 77, not all of the features will work with
Most modern Fortran compilers expect a file with a .f or .for extension (for FORTRAN 66 or FORTRAN 77 fixed-form source, although the FORTRAN 66 dialect may have to be selected specifically with a command-line option) or .f90/.f95 extension (for Fortran 90/95 free-form source, respectively).
0 nasa technical note nasa -itn d-5656 f rapier -a fortran iv program for multiple linear regression analysis providing internally evaluated remodeling
7 FORTRAN evolution ! FORTRAN I (released in 1957 by IBM) ! FORTRAN II (1958, separate compile & link) ! FORTRAN IV (1961. Machine independent.)
45 Example of reduction 46 Example of inquiry 46 Example of construction 46 Example of location 47 Exercises 51 Control statements 51 Conditional statements 51 IF statement and construct 53 SELECT CASE construct 53 GOTO 54 Repetition 54 DO construct 55 Transferring Control 56 Nesting 56 Exercises 59 Program units 59 Program structure 60 The main program 60 Procedures 61 Actual and …
Getting started with Fortran 1 Outline History of Fortran Variables and their assignment Control structures 2 Why to learn Fortran? Well suited for numerical computations
Subroutines and Functions. A complex and large computer program can be broken up into many more manageable subprograms. There is only one “main” program, the other subprograms are called subroutines or functions.
Side Effects. An external function is supposed to return exactly one value via the function name. However, it is permitted for the function to have ‘side effects’, that is, for the function to alter the values of the actual arguments or of variables appearing in COMMON blocks.
A brief history of Fortran (and FORTRAN) •developed in the 1950’s by IBM •FOR(mula) TRAN(slation): written for doing Maths! •Prior to FORTRAN, most code was written in assembly language (i.e., machine
Fortran Tutorial(1) Cargado por (logical expression) then statement end if However.Fortran select case construct A select case statement allows a variable to be tested for equality against a list of values. nested select case construct You can use one select case statement inside another select case statement(s). then the block of code inside the if…then statement will be executed. “a is
The SELECT CASEStatement:Statement: 1/71/7 zFortran 90 has the SSSELECT CASEstatement for selective execution if the selection criteria are based on simpple values in INTEGER, LOGICAL and CHARACTER. No, REALis not applicable. SELECT CASE (selector) CASE (label-list-1) statements-1 CASE (label-list-2) 2 selector is an expression evaluated to an INTEGER, LOGICALor CHARACTERvalue statements-CASE
In 1962 a new version called Fortran IV emerged. This version had among it’s features the ability to read and write direct access file s and also had a new data-type called LOGICAL. This was a Boolean data-type withtwo states true or false. At the end of the seventies Fortran 77 was introduced. This version con-tained better loop and test structures. In 1992 Fortran 90 was formally

554027 Modern Fortran Programming for Chemists and Physicists
IF-THEN-ELSE IF-END IF Computer Science

Fortran Quick Reference/Cheat Sheet Remember: FORTRAN 77 and below is case sensitive. Fortran 90 and above is NOT case sensitive. Introduction Important things to note are: • Fortran can perform array arithmetic operations. • Spaces are ignored? • Fortran is a compiled language which is compiled into an executable • Blue text indicates a feature which is available from Fortran 90
0 nasa technical note nasa -itn d-5656 f rapier -a fortran iv program for multiple linear regression analysis providing internally evaluated remodeling
45 Example of reduction 46 Example of inquiry 46 Example of construction 46 Example of location 47 Exercises 51 Control statements 51 Conditional statements 51 IF statement and construct 53 SELECT CASE construct 53 GOTO 54 Repetition 54 DO construct 55 Transferring Control 56 Nesting 56 Exercises 59 Program units 59 Program structure 60 The main program 60 Procedures 61 Actual and …
Fortran (/ ˈ f ɔːr t r æ n /; formerly FORTRAN, derived from Formula Translation) is a general-purpose, compiled imperative programming language that is especially suited to numeric computation and scientific computing.
Fortran 1957 – 2008 : A Language with a Past, Present and Future Peter Crouch pccrouch@bcs.org.uk Chairman Fortran Specialist Group www.fortran.bcs.org BCS Birmingham Branch meeting 19 May 2008. My Background 1968 ­ 1984 Industrial research chemist. Started programming in BASIC and Pascal in the late 1970s. Began to to use FORTRAN in the early 1980s. 1985 ­ 2001 …
Side Effects. An external function is supposed to return exactly one value via the function name. However, it is permitted for the function to have ‘side effects’, that is, for the function to alter the values of the actual arguments or of variables appearing in COMMON blocks.
Example 1: Recursive Routines in FORTRAN 77 (and Fortran 90) First let me say that I think every serious Fortran programmer should always write new code in Fortran 90 or Fortran 95, but for those of you stuck on a desert island with only a FORTRAN 77 compiler at your disposal, here’s a way to write a recursive subroutine.
Fortran Tutorial(1) Cargado por (logical expression) then statement end if However.Fortran select case construct A select case statement allows a variable to be tested for equality against a list of values. nested select case construct You can use one select case statement inside another select case statement(s). then the block of code inside the if…then statement will be executed. “a is
In many other programming languages, for example, the data type of each variable must be declared in advance. Fortran does not insist on this, so if you make a spelling mistake in a variable name, the compiler will probably use two variables when you plan to use only one. Such errors can be serious but are not always easy to detect.
Oldest version still in use is Fortran IV, and Fortran 66. Most commonly used versions today are : Fortran 77, Fortran 90, and Fortran 95. Fortran 77 added strings as a distinct type.
12.010 Computational Methods of Scientific Programming Lecturers Thomas A Herring . Chris Hill . 9/15/2011 12.010 Lec 03 2 Review of Lecture 2 •Examined computer hardware •Computer basics and the main features of programs •Program design: Consider the case of calculating the area of an arbitrary n-sided polygon. –We had considered input of points that make up polynomial •Finish this
The first set of examples are for the Fortran II, IV, and 77 compilers. Fortran/Fortran examples – Wikibooks, open books for an open world iii Preface The Fortran 90 Handbook is a destnitive and comprehensive guide to Fortran 90 and its use.
A brief history of Fortran (and FORTRAN) • developed in the 1950’s by IBM • FOR(mula) TRAN(slation): written for doing Maths! • Prior to FORTRAN, most code …
Fortran Lecture 1.1 1. Fortran Language Fortran is a high level computer language first invented in the 1950’s. Fortran IV, invented 1970, Fortran 77 used until Fortran 90/95. The latest version we have is SALFORD F90/95. Some features of Fortran were needed for older machines without VDUs, keyboards or mice. If you read old text books for Fortran 77, not all of the features will work with

Basic Fortran 95/2003 PRACE Research Infrastructure
IOP Fortran talk University of York

Block IF. The block IF statement is a more general version of the simple logical IF and can take several forms, depending on the complexity of the decisions and/or branching.
Getting started with Fortran 1 Outline History of Fortran Variables and their assignment Control structures 2 Why to learn Fortran? Well suited for numerical computations
7 FORTRAN evolution ! FORTRAN I (released in 1957 by IBM) ! FORTRAN II (1958, separate compile & link) ! FORTRAN IV (1961. Machine independent.)
709/7090 FORTRAN therefore, in effect, transforms the IBM 709/7090 into a machine with which communication can be made in a language more concise and …
An optimizing compiler like FORTRAN would most likely select the more compact and usually faster Transfers instead of the Compare (use of Transfers also allowed the FREQUENCY statement to optimize IF s, which could not be done using the Compare).
Fortran 1957 – 2008 : A Language with a Past, Present and Future Peter Crouch pccrouch@bcs.org.uk Chairman Fortran Specialist Group www.fortran.bcs.org BCS Birmingham Branch meeting 19 May 2008. My Background 1968 ­ 1984 Industrial research chemist. Started programming in BASIC and Pascal in the late 1970s. Began to to use FORTRAN in the early 1980s. 1985 ­ 2001 …
Fortran Tutorial(1) Cargado por (logical expression) then statement end if However.Fortran select case construct A select case statement allows a variable to be tested for equality against a list of values. nested select case construct You can use one select case statement inside another select case statement(s). then the block of code inside the if…then statement will be executed. “a is
A Fortran 2003 introduction by examples. Gunnar Wollan 2012 1 Introduction The purpose of this book is to give a good insight in the Fortran 2003 programming language.by going through a number of examples showing how computational problems and the reading and writing data to files can be solved.
end select where: expr is a scalar expression of type integer, logical or character (en closed in parentheses); evaluation of this expression results in a valu e called the case
Introduction to Computer Programming Using Fortran 95 Workbook Edition 3 January 2010 . Introduction to Computer Programming Using Fortran 95 A Student Guide January 2010 . 2 Acknowledgement DR. A C MARSHALL from the University of Liverpool (funded by JISC/NTI) first presented this material. He acknowledged Steve Morgan and Lawrie Schonfelder. Helen Talbot and Neil Hamilton-Smith took the
In many other programming languages, for example, the data type of each variable must be declared in advance. Fortran does not insist on this, so if you make a spelling mistake in a variable name, the compiler will probably use two variables when you plan to use only one. Such errors can be serious but are not always easy to detect.
Logical Assignment. v is the name of a variable, array element, or record field of type logical. e is a logical expression, or an integer between -128 and 127, or a single character constant.
Fortran (/ ˈ f ɔːr t r æ n /; formerly FORTRAN, derived from Formula Translation) is a general-purpose, compiled imperative programming language that is especially suited to numeric computation and scientific computing.
A brief history of Fortran (and FORTRAN) •developed in the 1950’s by IBM •FOR(mula) TRAN(slation): written for doing Maths! •Prior to FORTRAN, most code was written in assembly language (i.e., machine
Both of the following references describe FORTRAN programming in the age of punched cards and FORTRAN IV, and are well-written. They would still be good introductions to the subject, and contain many examples. Of course, they are long out of print, but should be preserved.

Fortran Tutorial(1) Data Type C (Programming Language)
Fortran Project Gutenberg Self-Publishing eBooks

Decisions The IF THEN Statement. Decisions in FORTRAN are accomplished with an IF-THEN program structure. Usually the block of code affected by the decision is indented to make it stand out from the rest of the program.
Example 1: Recursive Routines in FORTRAN 77 (and Fortran 90) First let me say that I think every serious Fortran programmer should always write new code in Fortran 90 or Fortran 95, but for those of you stuck on a desert island with only a FORTRAN 77 compiler at your disposal, here’s a way to write a recursive subroutine.
Fortran 90 Lecture 5 AS 3013 1 Fortran 90 Arrays •To store lists of data, all of the same type, use arrays.
The REWIND statement positions the file associated with the specified unit to its initial point. The options can be specified in any order. Rewinding a unit not associated with any file has no effect. Likewise, REWIND in a terminal file has no effect either. Using a REWIND statement on a direct
In most books, the name of the language is spelled in upper-case, FOR- TRAN, because it is an acronym; the Fortran 90 Standards Committee has now recommended the spelling Fortran…
ADVERTISEMENTS: After reading this article you will learn about the classification of input-output (i/o) statements. 1. Input Statements: The digital computer can accept data from cards, tapes, disks or key-board. This process is called INPUT operation. The instruction in the FORTRAN program for an input operation is a statement that contains
Fortran Quick Reference/Cheat Sheet Remember: FORTRAN 77 and below is case sensitive. Fortran 90 and above is NOT case sensitive. Introduction Important things to note are: • Fortran can perform array arithmetic operations. • Spaces are ignored? • Fortran is a compiled language which is compiled into an executable • Blue text indicates a feature which is available from Fortran 90

Fortran Wikipedia the free encyclopedia – Naslovnica PMF
A Summary of Fortran Home – Math

FORTRAN started out as IBM’s’ Mathematical Formula Translating System. It was designed by a team led by John Backus and targeted computationally intensive applications from physics to weather
3 Fortran 90 (1991) Added • Free format source code form ( up to 132 columns per line) • More than one statement per line • Inline comments • Upper and lower case letters
45 Example of reduction 46 Example of inquiry 46 Example of construction 46 Example of location 47 Exercises 51 Control statements 51 Conditional statements 51 IF statement and construct 53 SELECT CASE construct 53 GOTO 54 Repetition 54 DO construct 55 Transferring Control 56 Nesting 56 Exercises 59 Program units 59 Program structure 60 The main program 60 Procedures 61 Actual and …
That “FORTRAN IV” code is also perfectly valid Fortran 95 or F2003. It’s actually F77, as the F66 interpretation of EXTERNAL isn’t compatible with F77. It’s actually F77, as the F66 interpretation of EXTERNAL isn’t compatible with F77.
Interactive Fortran IV computer programs for the thermodynamic and transport properties of selected cryogens (fluids pack) by McCarty, Robert D. Topics Thermodynamics–Data processing. , Liquefied gases–Thermal properties–Data processing. , Low temperature research–Data processing.

Chapter 1 3rd Generation Languages for Statistics (by G
A Summary of Fortran Home – Math

Example 1: Recursive Routines in FORTRAN 77 (and Fortran 90) First let me say that I think every serious Fortran programmer should always write new code in Fortran 90 or Fortran 95, but for those of you stuck on a desert island with only a FORTRAN 77 compiler at your disposal, here’s a way to write a recursive subroutine.
For example, one of IBM’s FORTRAN compilers SELECT. . . CASE construct for multi-way selection Portable specification of numerical precision under the user’s control New and enhanced intrinsic procedures. The much delayed successor to FORTRAN 77, informally known as Fortran 90 (and prior to that, Fortran 8X), was finally released as ISO/IEC standard 1539:1991 in 1991 and an ANSI …
When this alternative code runs, then, for example, the code for Case 1 could set the condition for Case 2, and the code for Case 2 could then set the condition for Case 3, and the code at the end …
7 FORTRAN evolution ! FORTRAN I (released in 1957 by IBM) ! FORTRAN II (1958, separate compile & link) ! FORTRAN IV (1961. Machine independent.)
All Fortran programs start with the keyword program and end with the keywordend program, followed by the name of the program. The implicit none statement allows the compiler to …
ADVERTISEMENTS: After reading this article you will learn about the classification of input-output (i/o) statements. 1. Input Statements: The digital computer can accept data from cards, tapes, disks or key-board. This process is called INPUT operation. The instruction in the FORTRAN program for an input operation is a statement that contains
Fortran Quick Reference/Cheat Sheet Remember: FORTRAN 77 and below is case sensitive. Fortran 90 and above is NOT case sensitive. Introduction Important things to note are: • Fortran can perform array arithmetic operations. • Spaces are ignored? • Fortran is a compiled language which is compiled into an executable • Blue text indicates a feature which is available from Fortran 90
FORTRAN started out as IBM’s’ Mathematical Formula Translating System. It was designed by a team led by John Backus and targeted computationally intensive applications from physics to weather
FORTRAN IV faded away Fortran 90 – ISO Standard 1991 The most extreme variants faded away Fortran 95 – ISO Standard 1996 Fortran 2003 – ISO Standard 2004 Fortran 2008 – expected in 2010 Introduction To Fortran Conversion – p. 5/?? Fortran Ancestry Fortran 77 Fortran 66 Fortran 90/95 Standards Fortran 2003 and others IBM Algol 68 Ada APL ICL DAP Others Introduction To Fortran
In many other programming languages, for example, the data type of each variable must be declared in advance. Fortran does not insist on this, so if you make a spelling mistake in a variable name, the compiler will probably use two variables when you plan to use only one. Such errors can be serious but are not always easy to detect.
Fortran Tutorial(1) Cargado por (logical expression) then statement end if However.Fortran select case construct A select case statement allows a variable to be tested for equality against a list of values. nested select case construct You can use one select case statement inside another select case statement(s). then the block of code inside the if…then statement will be executed. “a is
Interactive Fortran IV computer programs for the thermodynamic and transport properties of selected cryogens (fluids pack) by McCarty, Robert D. Topics Thermodynamics–Data processing. , Liquefied gases–Thermal properties–Data processing. , Low temperature research–Data processing.
1 Dr. Matthew D. Segall University of Cambridge Fortran90/5: A Bridge Between the Past and the Future Matthew Segall University of Cambridge. Dr. Matthew D. Segall University of Cambridge
Fortran Lecture 1.1 1. Fortran Language Fortran is a high level computer language first invented in the 1950’s. Fortran IV, invented 1970, Fortran 77 used until Fortran 90/95. The latest version we have is SALFORD F90/95. Some features of Fortran were needed for older machines without VDUs, keyboards or mice. If you read old text books for Fortran 77, not all of the features will work with
Logical Assignment. v is the name of a variable, array element, or record field of type logical. e is a logical expression, or an integer between -128 and 127, or a single character constant.

IF-THEN-ELSE IF-END IF Computer Science
Fortran Lecture 1 City University London

12.010 Computational Methods of Scientific Programming Lecturers Thomas A Herring . Chris Hill . 9/15/2011 12.010 Lec 03 2 Review of Lecture 2 •Examined computer hardware •Computer basics and the main features of programs •Program design: Consider the case of calculating the area of an arbitrary n-sided polygon. –We had considered input of points that make up polynomial •Finish this
This is likely down to your use of list-directed input. Here, * and / mean special things in terms of input. You could read up on using an explicit format.
A brief history of Fortran (and FORTRAN) • developed in the 1950’s by IBM • FOR(mula) TRAN(slation): written for doing Maths! • Prior to FORTRAN, most code …
The Basic Problem REAL must be same size as INTEGER This is for historical reasons – ask if you care 32 bits allows integers of up to 2147483647
In many other programming languages, for example, the data type of each variable must be declared in advance. Fortran does not insist on this, so if you make a spelling mistake in a variable name, the compiler will probably use two variables when you plan to use only one. Such errors can be serious but are not always easy to detect.
Both of the following references describe FORTRAN programming in the age of punched cards and FORTRAN IV, and are well-written. They would still be good introductions to the subject, and contain many examples. Of course, they are long out of print, but should be preserved.
Learn form dissecting examples Get in touch with the dirty work Get some overview of advances topics Focus on principles and generic strategies Continued learning on individual basis This course just get you started – use textbooks, reference manuals and software examples from the internet for further work with projects Gunnar Wollan Introductory Fortran Programming. Motivation About Fortran
Introduction to Computer Programming Using Fortran 95 Workbook Edition 3 January 2010 . Introduction to Computer Programming Using Fortran 95 A Student Guide January 2010 . 2 Acknowledgement DR. A C MARSHALL from the University of Liverpool (funded by JISC/NTI) first presented this material. He acknowledged Steve Morgan and Lawrie Schonfelder. Helen Talbot and Neil Hamilton-Smith took the
The REWIND statement positions the file associated with the specified unit to its initial point. The options can be specified in any order. Rewinding a unit not associated with any file has no effect. Likewise, REWIND in a terminal file has no effect either. Using a REWIND statement on a direct
FORTRAN started out as IBM’s’ Mathematical Formula Translating System. It was designed by a team led by John Backus and targeted computationally intensive applications from physics to weather
Example 1: Recursive Routines in FORTRAN 77 (and Fortran 90) First let me say that I think every serious Fortran programmer should always write new code in Fortran 90 or Fortran 95, but for those of you stuck on a desert island with only a FORTRAN 77 compiler at your disposal, here’s a way to write a recursive subroutine.
7 FORTRAN evolution ! FORTRAN I (released in 1957 by IBM) ! FORTRAN II (1958, separate compile & link) ! FORTRAN IV (1961. Machine independent.)
Fortran Lecture 1.1 1. Fortran Language Fortran is a high level computer language first invented in the 1950’s. Fortran IV, invented 1970, Fortran 77 used until Fortran 90/95. The latest version we have is SALFORD F90/95. Some features of Fortran were needed for older machines without VDUs, keyboards or mice. If you read old text books for Fortran 77, not all of the features will work with
A brief history of Fortran (and FORTRAN) •developed in the 1950’s by IBM •FOR(mula) TRAN(slation): written for doing Maths! •Prior to FORTRAN, most code was written in assembly language (i.e., machine
An optimizing compiler like FORTRAN would most likely select the more compact and usually faster Transfers instead of the Compare (use of Transfers also allowed the FREQUENCY statement to optimize IF s, which could not be done using the Compare).

Fortran in the 21st Century bcs.org
Basic Fortran 95/2003 PRACE Research Infrastructure

3 Fortran 90 (1991) Added • Free format source code form ( up to 132 columns per line) • More than one statement per line • Inline comments • Upper and lower case letters
A brief history of Fortran (and FORTRAN) • developed in the 1950’s by IBM • FOR(mula) TRAN(slation): written for doing Maths! • Prior to FORTRAN, most code …
Chapter 1 3rd Generation Languages for Statistics (by G. Mélard) 1.0 INTRODUCTION FORTRAN History Fortran IV 1966 change programs if possible Fortran 77 1978 just read them
Fortran 1957 – 2008 : A Language with a Past, Present and Future Peter Crouch pccrouch@bcs.org.uk Chairman Fortran Specialist Group www.fortran.bcs.org BCS Birmingham Branch meeting 19 May 2008. My Background 1968 ­ 1984 Industrial research chemist. Started programming in BASIC and Pascal in the late 1970s. Began to to use FORTRAN in the early 1980s. 1985 ­ 2001 …
Learn form dissecting examples Get in touch with the dirty work Get some overview of advances topics Focus on principles and generic strategies Continued learning on individual basis This course just get you started – use textbooks, reference manuals and software examples from the internet for further work with projects Gunnar Wollan Introductory Fortran Programming. Motivation About Fortran
12.010 Computational Methods of Scientific Programming Lecturers Thomas A Herring . Chris Hill . 9/15/2011 12.010 Lec 03 2 Review of Lecture 2 •Examined computer hardware •Computer basics and the main features of programs •Program design: Consider the case of calculating the area of an arbitrary n-sided polygon. –We had considered input of points that make up polynomial •Finish this
709/7090 FORTRAN therefore, in effect, transforms the IBM 709/7090 into a machine with which communication can be made in a language more concise and …
In 1962 a new version called Fortran IV emerged. This version had among it’s features the ability to read and write direct access file s and also had a new data-type called LOGICAL. This was a Boolean data-type withtwo states true or false. At the end of the seventies Fortran 77 was introduced. This version con-tained better loop and test structures. In 1992 Fortran 90 was formally
The Basic Problem REAL must be same size as INTEGER This is for historical reasons – ask if you care 32 bits allows integers of up to 2147483647
In many other programming languages, for example, the data type of each variable must be declared in advance. Fortran does not insist on this, so if you make a spelling mistake in a variable name, the compiler will probably use two variables when you plan to use only one. Such errors can be serious but are not always easy to detect.
First version 1954 FORTRAN 66 FORTRAN 77 Fortran 90 – Backwards compatible (The F programming language) Fortran 95 Fortran 2003, (2004)

Andy’s Fortran Examples Pennsylvania State University
Fortran cs.rit.edu

Action: May be replaced by the SELECT CASE structure, which is more powerful and does not involve the risk of failing to include a GO TO statement in each clause to branch to the end. It also allows a case default section as a long-stop.
The first set of examples are for the Fortran II, IV, and 77 compilers. The remaining examples can be compiled and run with any newer standard Fortran compiler (see the end of the main Fortran article for lists of compilers). By convention most contemporary Fortran compilers select the language standard to use during compilation based on source code file name suffix: FORTRAN 77 for .f (or the
example, Fortran is popular with the scientific and engineering community, Cobol is used for business applications and C for systems programming. Logic programming involves the construction of a database with facts and rules and the program examines the database to locate one or more rule that apply with a given input. Functional programming involves the construction of functions. A function
45 Example of reduction 46 Example of inquiry 46 Example of construction 46 Example of location 47 Exercises 51 Control statements 51 Conditional statements 51 IF statement and construct 53 SELECT CASE construct 53 GOTO 54 Repetition 54 DO construct 55 Transferring Control 56 Nesting 56 Exercises 59 Program units 59 Program structure 60 The main program 60 Procedures 61 Actual and …
When this alternative code runs, then, for example, the code for Case 1 could set the condition for Case 2, and the code for Case 2 could then set the condition for Case 3, and the code at the end …
Introduction to Computer Programming Using Fortran 95 Workbook Edition 3 January 2010 . Introduction to Computer Programming Using Fortran 95 A Student Guide January 2010 . 2 Acknowledgement DR. A C MARSHALL from the University of Liverpool (funded by JISC/NTI) first presented this material. He acknowledged Steve Morgan and Lawrie Schonfelder. Helen Talbot and Neil Hamilton-Smith took the
709/7090 FORTRAN therefore, in effect, transforms the IBM 709/7090 into a machine with which communication can be made in a language more concise and …
Fortran Lecture 1.1 1. Fortran Language Fortran is a high level computer language first invented in the 1950’s. Fortran IV, invented 1970, Fortran 77 used until Fortran 90/95. The latest version we have is SALFORD F90/95. Some features of Fortran were needed for older machines without VDUs, keyboards or mice. If you read old text books for Fortran 77, not all of the features will work with
A brief history of Fortran (and FORTRAN) • developed in the 1950’s by IBM • FOR(mula) TRAN(slation): written for doing Maths! • Prior to FORTRAN, most code …
An optimizing compiler like FORTRAN would most likely select the more compact and usually faster Transfers instead of the Compare (use of Transfers also allowed the FREQUENCY statement to optimize IF s, which could not be done using the Compare).
The SELECT CASEStatement:Statement: 1/71/7 zFortran 90 has the SSSELECT CASEstatement for selective execution if the selection criteria are based on simpple values in INTEGER, LOGICAL and CHARACTER. No, REALis not applicable. SELECT CASE (selector) CASE (label-list-1) statements-1 CASE (label-list-2) 2 selector is an expression evaluated to an INTEGER, LOGICALor CHARACTERvalue statements-CASE
For example, one of IBM’s FORTRAN compilers SELECT. . . CASE construct for multi-way selection Portable specification of numerical precision under the user’s control New and enhanced intrinsic procedures. The much delayed successor to FORTRAN 77, informally known as Fortran 90 (and prior to that, Fortran 8X), was finally released as ISO/IEC standard 1539:1991 in 1991 and an ANSI …

plz. help to convert this fortran iv program into matlab
Chapter 1 3rd Generation Languages for Statistics (by G

Both of the following references describe FORTRAN programming in the age of punched cards and FORTRAN IV, and are well-written. They would still be good introductions to the subject, and contain many examples. Of course, they are long out of print, but should be preserved.
Subroutines and Functions. A complex and large computer program can be broken up into many more manageable subprograms. There is only one “main” program, the other subprograms are called subroutines or functions.
An optimizing compiler like FORTRAN would most likely select the more compact and usually faster Transfers instead of the Compare (use of Transfers also allowed the FREQUENCY statement to optimize IF s, which could not be done using the Compare).
The SELECT CASEStatement:Statement: 1/71/7 zFortran 90 has the SSSELECT CASEstatement for selective execution if the selection criteria are based on simpple values in INTEGER, LOGICAL and CHARACTER. No, REALis not applicable. SELECT CASE (selector) CASE (label-list-1) statements-1 CASE (label-list-2) 2 selector is an expression evaluated to an INTEGER, LOGICALor CHARACTERvalue statements-CASE
In 1962 a new version called Fortran IV emerged. This version had among it’s features the ability to read and write direct access file s and also had a new data-type called LOGICAL. This was a Boolean data-type withtwo states true or false. At the end of the seventies Fortran 77 was introduced. This version con-tained better loop and test structures. In 1992 Fortran 90 was formally
The first set of examples are for the Fortran II, IV, and 77 compilers. Fortran/Fortran examples – Wikibooks, open books for an open world iii Preface The Fortran 90 Handbook is a destnitive and comprehensive guide to Fortran 90 and its use.
Interactive Fortran IV computer programs for the thermodynamic and transport properties of selected cryogens (fluids pack) by McCarty, Robert D. Topics Thermodynamics–Data processing. , Liquefied gases–Thermal properties–Data processing. , Low temperature research–Data processing.

Statement level control structures Bilkent University
Fortran 1957 – 2008 A Language with a Past Present and

Action: May be replaced by the SELECT CASE structure, which is more powerful and does not involve the risk of failing to include a GO TO statement in each clause to branch to the end. It also allows a case default section as a long-stop.
Fortran 90 Lecture 5 AS 3013 1 Fortran 90 Arrays •To store lists of data, all of the same type, use arrays.
This is likely down to your use of list-directed input. Here, * and / mean special things in terms of input. You could read up on using an explicit format.
When this alternative code runs, then, for example, the code for Case 1 could set the condition for Case 2, and the code for Case 2 could then set the condition for Case 3, and the code at the end …
SELECT CASE (selector) CASE (list #1) statements CASE (list #2) statements. . . CASE DEFAULT statements END SELECT The selector may be an integer, character, or logical expression.
Subroutines and Functions. A complex and large computer program can be broken up into many more manageable subprograms. There is only one “main” program, the other subprograms are called subroutines or functions.

Getting started with Fortran Why to learn Fortran? Short
Fortran Parameter (Computer Programming) Data Type

Interactive Fortran IV computer programs for the thermodynamic and transport properties of selected cryogens (fluids pack) by McCarty, Robert D. Topics Thermodynamics–Data processing. , Liquefied gases–Thermal properties–Data processing. , Low temperature research–Data processing.
Introduction to Computer Programming Using Fortran 95 Workbook Edition 3 January 2010 . Introduction to Computer Programming Using Fortran 95 A Student Guide January 2010 . 2 Acknowledgement DR. A C MARSHALL from the University of Liverpool (funded by JISC/NTI) first presented this material. He acknowledged Steve Morgan and Lawrie Schonfelder. Helen Talbot and Neil Hamilton-Smith took the
709/7090 FORTRAN therefore, in effect, transforms the IBM 709/7090 into a machine with which communication can be made in a language more concise and …
Fortran (/ ˈ f ɔːr t r æ n /; formerly FORTRAN, derived from Formula Translation) is a general-purpose, compiled imperative programming language that is especially suited to numeric computation and scientific computing.
For example, one of IBM’s FORTRAN compilers SELECT. . . CASE construct for multi-way selection Portable specification of numerical precision under the user’s control New and enhanced intrinsic procedures. The much delayed successor to FORTRAN 77, informally known as Fortran 90 (and prior to that, Fortran 8X), was finally released as ISO/IEC standard 1539:1991 in 1991 and an ANSI …
0 nasa technical note nasa -itn d-5656 f rapier -a fortran iv program for multiple linear regression analysis providing internally evaluated remodeling
7 FORTRAN evolution ! FORTRAN I (released in 1957 by IBM) ! FORTRAN II (1958, separate compile & link) ! FORTRAN IV (1961. Machine independent.)
In most books, the name of the language is spelled in upper-case, FOR- TRAN, because it is an acronym; the Fortran 90 Standards Committee has now recommended the spelling Fortran…
Example 1: Recursive Routines in FORTRAN 77 (and Fortran 90) First let me say that I think every serious Fortran programmer should always write new code in Fortran 90 or Fortran 95, but for those of you stuck on a desert island with only a FORTRAN 77 compiler at your disposal, here’s a way to write a recursive subroutine.
Decisions The IF THEN Statement. Decisions in FORTRAN are accomplished with an IF-THEN program structure. Usually the block of code affected by the decision is indented to make it stand out from the rest of the program.
When this alternative code runs, then, for example, the code for Case 1 could set the condition for Case 2, and the code for Case 2 could then set the condition for Case 3, and the code at the end …
12.010 Computational Methods of Scientific Programming Lecturers Thomas A Herring . Chris Hill . 9/15/2011 12.010 Lec 03 2 Review of Lecture 2 •Examined computer hardware •Computer basics and the main features of programs •Program design: Consider the case of calculating the area of an arbitrary n-sided polygon. –We had considered input of points that make up polynomial •Finish this
A brief history of Fortran (and FORTRAN) •developed in the 1950’s by IBM •FOR(mula) TRAN(slation): written for doing Maths! •Prior to FORTRAN, most code was written in assembly language (i.e., machine

Fortran Functions and Subroutines
Reference Manual 709/7090 Fortran Programming System

The Basic Problem REAL must be same size as INTEGER This is for historical reasons – ask if you care 32 bits allows integers of up to 2147483647
Fortran Quick Reference/Cheat Sheet Remember: FORTRAN 77 and below is case sensitive. Fortran 90 and above is NOT case sensitive. Introduction Important things to note are: • Fortran can perform array arithmetic operations. • Spaces are ignored? • Fortran is a compiled language which is compiled into an executable • Blue text indicates a feature which is available from Fortran 90
In most books, the name of the language is spelled in upper-case, FOR- TRAN, because it is an acronym; the Fortran 90 Standards Committee has now recommended the spelling Fortran…
Action: May be replaced by the SELECT CASE structure, which is more powerful and does not involve the risk of failing to include a GO TO statement in each clause to branch to the end. It also allows a case default section as a long-stop.
12.010 Computational Methods of Scientific Programming Lecturers Thomas A Herring . Chris Hill . 9/15/2011 12.010 Lec 03 2 Review of Lecture 2 •Examined computer hardware •Computer basics and the main features of programs •Program design: Consider the case of calculating the area of an arbitrary n-sided polygon. –We had considered input of points that make up polynomial •Finish this
Fortran 90 Lecture 5 AS 3013 1 Fortran 90 Arrays •To store lists of data, all of the same type, use arrays.
The REWIND statement positions the file associated with the specified unit to its initial point. The options can be specified in any order. Rewinding a unit not associated with any file has no effect. Likewise, REWIND in a terminal file has no effect either. Using a REWIND statement on a direct
The first set of examples are for the Fortran II, IV, and 77 compilers. The remaining examples can be compiled and run with any newer standard Fortran compiler (see the end of the main Fortran article for lists of compilers). By convention most contemporary Fortran compilers select the language standard to use during compilation based on source code file name suffix: FORTRAN 77 for .f (or the
All Fortran programs start with the keyword program and end with the keywordend program, followed by the name of the program. The implicit none statement allows the compiler to …