I also seem to remember that if you wanted to control what lines to execute you had to set $. to the linenumbers to be executed It took some time to get used to
It sure has come a long way 2006/2/28, Cliff Reiter <[EMAIL PROTECTED]>: > > The design choice was also made in the context of a history. > Back in '93, there was J version 7 (now we have J release 5.04) > that had no control words: no if., no while., > but there was "control suite", a modifiable > list of lines to be executed. Main interface was a dos text > window. In that era I remember (maybe correctly) > explicit functions being built > > t=.'a=.^y.' > t=.t,:'b=.*x.' > t=.t,'a+b' > > f=: '' : t > > I think 3 : 0 arrived around '94 > > f=:3 : 0 > : > a=.^y. > b=.*x. > a+b > ) > > looks swell and I have no trouble remembering 3 : 0 > I am amazed that the design of 3 : 0 helped open the door > to the rich interface that Oleg described, and we > now enjoy. > > Best, > Cliff > > > -- > Clifford A. Reiter > Mathematics Department, Lafayette College > Easton, PA 18042 USA, 610-330-5277 > http://www.lafayette.edu/~reiterc > > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > -- Björn Helgason, Verkfræðingur Fugl&Fiskur ehf, Þerneyjarsund 23, Skype: gosiminn, gsm: +3546985532 802 Selfoss ,t-póst: [EMAIL PROTECTED] http://www.linux.is/forritun/data/J/grunnur.pdf Tæknikunnátta höndlar hið flókna, sköpunargáfa er meistari einfaldleikans góður kennari getur stigið á tær án þess að glansinn fari af skónum /|_ .-----------------------------------. ,' .\ / | Með léttri lund verður | ,--' _,' | Dagurinn í dag | / / | Enn betri en gærdagurinn | ( -. | `-----------------------------------' | ) | (`-. '--.) `. )----' ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
