Fortran - Fortran 1 Fortran, as derived from Formula Translating System, is a general-purpose, imperative

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  • Fortran

    i

  • Fortran

    i

    About the Tutorial

    Fortran was originally developed by a team at IBM in 1957 for scientific

    calculations. Later developments made it into a high level programming

    language. In this tutorial, we will learn the basic concepts of Fortran and its

    programming code.

    Audience

    This tutorial is designed for the readers who wish to learn the basics of Fortran.

    Prerequisites

    This tutorial is designed for beginners. A general awareness of computer

    programming languages is the only prerequisite to make the most of this

    tutorial.

    Copyright & Disclaimer

     Copyright 2014 by Tutorials Point (I) Pvt. Ltd.

    All the content and graphics published in this e-book are the property of Tutorials Point

    (I) Pvt. Ltd. The user of this e-book is prohibited to reuse, retain, copy, distribute or

    republish any contents or a part of contents of this e-book in any manner without written

    consent of the publisher.

    We strive to update the contents of our website and tutorials as timely and as precisely

    as possible, however, the contents may contain inaccuracies or errors. Tutorials Point (I)

    Pvt. Ltd. provides no guarantee regarding the accuracy, timeliness or completeness of

    our website or its contents including this tutorial. If you discover any errors on our

    website or in this tutorial, please notify us at contact@tutorialspoint.com

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    Table of Contents

    About the Tutorial ····································································································································i

    Audience ··················································································································································i

    Prerequisites ············································································································································i

    Copyright & Disclaimer ·····························································································································i

    Table of Contents ···································································································································· ii

    1. OVERVIEW ··························································································································· 1

    Facts about Fortran ·································································································································1

    2. ENVIRONMENT SETUP ········································································································· 3

    Setting up Fortran in Windows ················································································································3

    How to Use G95 ······································································································································4

    3. BASIC SYNTAX ······················································································································ 5

    A Simple Program in Fortran ···················································································································5

    Basics ······················································································································································6

    Identifier ·················································································································································6

    Keywords ················································································································································7

    4. DATA TYPES ························································································································· 9

    Integer Type ············································································································································9

    Real Type ·············································································································································· 10

    Complex Type········································································································································ 12

    Logical Type ·········································································································································· 12

    Character Type ······································································································································ 12

    Implicit Typing ······································································································································· 12

    5. VARIABLES ························································································································· 13

    Variable Declaration······························································································································ 13

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    6. CONSTANTS ······················································································································· 16

    Named Constants and Literals ··············································································································· 16

    7. OPERATORS ······················································································································· 19

    Arithmetic Operators ···························································································································· 19

    Relational Operators ··································································

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