An Introduction to Programming in Fortran 90

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1、Guide138Version2.0AnintroductiontoprogramminginFortran90ThisguideprovidesanintroductiontocomputerprogrammingintheFortran90programminglanguage.TheelementsofprogrammingareintroducedinthecontextofFortran90andaseriesofexamplesandexercisesisusedtoillustrate

2、theiruse.TheaimofthecourseistoprovidesufficientknowledgeofprogrammingandFortran90towritestraightforwardprograms.Thecourseisdesignedforthosewithlittleornopreviousprogrammingexperience,butyouwillneedtobeabletoworkinLinuxanduseaLinuxtexteditor.Documentcod

3、e:Guide138Title:AnintroductiontoprogramminginFortran90Version:2.0Date:01/10/2011Producedby:UniversityofDurhamInformationTechnologyServiceThisdocumentwasbasedonaFortran77coursewrittenintheDepartmentofPhysics,UniversityofDurham.Copyright©2012Universityof

4、DurhamInformationTechnologyServiceConventions:Inthisdocument,thefollowingconventionsareused:Aboldtypewriterfontisusedtorepresenttheactualcharactersyoutypeatthekeyboard.Aslantedtypewriterfontisusedforitemssuchasfilenameswhichyoushouldreplacewithparticul

5、arinstances.Atypewriterfontisusedforwhatyouseeonthescreen.Aboldfontisusedtoindicatenamedkeysonthekeyboard,forexample,EscandEnter,representthekeysmarkedEscandEnter,respectively.Wheretwokeysareseparatedbyaforwardslash(asinCtrl/B,forexample),pressandholdd

6、ownthefirstkey(Ctrl),tapthesecond(B),andthenreleasethefirstkey.Aboldfontisalsousedwhereatechnicaltermorcommandnameisusedinthetext.Contents1.Introduction....................................................................................................

7、..12.Programmingbasics.......................................................................................22.1ThemainpartsofaFortran90program.......................................................22.2ThelayoutofFortran90statements...................

8、..........................................33.Datatypes........................................................................................................33.1Constants.................................................................