It's up to you, just use your imagination. FORTRAN 90 Matmeca 1`ere ann´ee ENSEIRB-MATMECA Luc Mieussens Luc.Mieussens@math.u-bordeaux1.fr - ´equipe Calcul Scientifique et Mod´elisation - Institut de Math´ematiques de Bordeaux Universit´e de Bordeaux version du 28 septembre 2011 1. We start by looking at a simple example where we calculate the area of a circle: program circle real r, area c This program reads a real number r and prints c the area of a circle with radius r. write (*,*) 'Give radius r:' A type describes what kind of data the variable is expected to contain. Fortran - Modules - A module is like a package where you can keep your functions and subroutines, in case you are writing a very big program, or your functions or subroutines can b When the black output window opens right click on the Plato icon in the top left corner . Le but de ce cours est d’apprendre `a programmer en fortran 90. 2 Why use Fortran? Saving the contents of Output Window. In the last 15 to 20 years Fortran has been looked upon as an old … Run your last program again. An example might be a program that asks people questions, including things like their age and name and so on. The text has to follow a certain syntax to be a valid Fortran program. Violaine Louvet (CNRS/ICJ) Fortran Rabat, 9-12/04/2012 19 / 105. Fortran permet d’initialiser une variable lors de sa déclaration à l’aide du symbole «=» I Dans ce cas, les caractères: :sont obligatoires I Ces variables héritent aussi de l’attributSAVE Exemples REAL a,b, c INTEGER n DATA a,b,n/1.0 , 2.0 , 17/ LOGICAL: : flag = .TRUE. It could, for example, print out their year of birth with a suitable message. Example of a Fortran 90 Program. Variables can also be used to store non-numeric values such as text, letters, and words, for example. Consider the following example Fortran 90 program: PROGRAM Triangle IMPLICIT NONE REAL :: a, b, c, Area PRINT *, 'Welcome, please enter the& &lengths of the 3 sides.' 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