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====J====

====J====

J is Turing Award winner Ken Iverson's last version of [[OLPC:APL|APL]], his language for describing computers and algorithms, designed originally for human use, not as a programming language. In order to avoid the controversy that surrounded the APL character set and keyboard layouts, J uses only ASCII. J Software, Iverson's company, put a version of J under GPL3 in March 2011. It can be installed and run from the command line. A Debian package is in preparation.

J is Turing Award winner Ken Iverson's last version of [[OLPC:APL|APL]], his language for describing computers and algorithms, designed originally for human use, not as a programming language. In order to avoid the controversy that surrounded the APL character set and keyboard layouts, J uses only ASCII. J Software, Iverson's company, [http://replacingtextbooks.wordpress.com/2011/07/26/another-programming-language-for-sugar/ put a version of J under GPL3] in March 2011. It can be installed and run from the command line. A Debian package is in preparation.

Iverson successfully used APL to teach arithmetic to first-graders on a loaned IBM 360 with Selectric printing terminals using APL typeballs. He wrote a book on teaching ''Arithmetic'', published by APL Press but now out of print. [[User:Mokurai|Mokurai]] is preparing to add it to the [[Replacing Textbooks]] server.

Iverson successfully used APL to teach arithmetic to first-graders on a loaned IBM 360 with Selectric printing terminals using APL typeballs. He wrote a book on teaching ''Arithmetic'', published by APL Press but now out of print. [[User:Mokurai|Mokurai]] is preparing to add it to the [[Replacing Textbooks]] server.