Reference Manual.pdf

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1、GAP-ReferenceManualRelease4.5.5,16-Jul-2012TheGAPGroupTheGAPGroupEmail:support@gap-system.orgHomepage:http://www.gap-system.orgGAP-ReferenceManual2CopyrightCopyright©(1987-2012)forthecorepartoftheGAPsystembytheGAPGroup.Mostpartsofthisdistribution,inclu

2、dingthecorepartoftheGAPsystemaredistributedunderthetermsoftheGNUGeneralPublicLicense,seehttp://www.gnu.org/licenses/gpl.htmlorthefileGPLintheetcdirectoryoftheGAPinstallation.Moredetailedinformationaboutcopyrightandlicensesofpartsofthisdistributioncanbef

3、oundinSection1.4ofthismanual.GAPisdevelopedoveralongtimeandhasmanyauthorsandcontributors.MoredetailedinformationcanbefoundinSection1.2ofthismanual.Contents1Preface231.1TheGAPSystem...................................231.2AuthorsandMaintainers...........

4、.....................251.3Acknowledgements..................................251.4CopyrightandLicense.................................261.5FurtherInformationaboutGAP............................272TheHelpSystem282.1InvokingtheHelp........................

5、...........282.2BrowsingthroughtheSections............................282.3ChangingtheHelpViewer...............................292.4ThePagerCommand.................................313RunningGAP333.1CommandLineOptions................................333.

6、2Thegap.iniandgaprcfiles...............................373.3SavingandLoadingaWorkspace...........................413.4TestingfortheSystemArchitecture..........................413.5GlobalValuesthatControltheGAPSession.....................423.6Coloringthe

7、PromptandInput............................424TheProgrammingLanguage444.1LanguageOverview..................................444.2LexicalStructure....................................454.3Symbols........................................454.4Whitespaces.....

8、.................................464.5Keywords.......................................474.6Identifiers.......................................474.7Expressions......................................484.8Variables.............................