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(Redirected from ISO/IEC 13751:2001)
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APL has been standardised by ANSI, ISO, and IEC. Early APL, supporting only simple arrays, was described by ISO 8485:1989 , and extended APL, with nested arrays, was written up as ISO/IEC 13751:2001.

The standards are more or less equivalent to IBM's implementations of APL\360 and APL2, which means that while some modern dialects, like APLX closely follow the latest standard, others, like APL+Win and Dyalog have a slightly different set of quad names and provide the migration level functionality to improve compatibility.

APL development [edit]
Interface SessionTyping glyphsFontsText editors
Publications IntroductionsLearning resourcesSimple examplesAdvanced examplesMnemonicsStandardsA Dictionary of APLCase studiesDocumentation suitesBooksPapersVideosPeriodicals
Current developers APLNowDyalogGNU APL communityIBMSudley Place
Historical developers BurroughsCDCDECData GeneralHPHarrisIPSAMicroAPLSTSCSiemensXerox