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
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Fortran
ii
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
