Thanks a lot. This gives me something to chew on. -EdK
--- Oleg Kobchenko <[EMAIL PROTECTED]> wrote: > This is an interesting question: how would > you think and what are the practices in > tacit programming. > > 0th you need test cases: what data is input > and output. > > First thing different from C++ is that J > is highly interective, which allow incremental > experimenting. > > Then you build from bottom up adding more > operations using parens (...) instead of > of name. > > Finally, creating names when needed. > > 4 #. 3 2 1 NB. test case > 57 > > 57 (^.~) 4 NB. incremental > 2.91645 > 57 (1 + ^.~) 4 > 3.91645 > 57 ([: <. 1 + ^.~) 4 > 3 > 57 (] #~ [: <. 1 + ^.~) 4 > 4 4 4 > 57 ([ #:~ ] #~ [: <. 1 + ^.~) 4 > 3 2 1 > > NB. new name > base=: [ #:~ ] #~ [: <. 1 + ^.~ > 57 base 4 > 3 2 1 > > > --- Ed Keith <[EMAIL PROTECTED]> wrote: > > > I'm coming to J from a C++ background. While much > of J > > requires a new mind set, I think I am getting most > of > > it, but I'm just not getting tacit programming. I > > cannot figure out anything that is not trivial. > > > > For example I recently wrote the following verb: > > > > base =: dyad : '((<. 1 + y ^. x) # y) #: x' > > > > It takes a number and a base and and produces an > array > > of digits to represent the number in the base. > > > > How would this be written tacitly? I'm not so much > > interested in how to write this verb, but how to > think > > through the creation of a tacit verb. > > > > Any assistance is appreciated, > > > > Thank you, > > > > EdK > > > > Ed Keith > > [EMAIL PROTECTED] > > > > Blog: edkeith.blogspot.com > > > > > > > ____________________________________________________________________________________ > > Fussy? Opinionated? Impossible to please? Perfect. > Join Yahoo!'s user panel and lay it on us. > > > http://surveylink.yahoo.com/gmrs/yahoo_panel_invite.asp?a=7 > > > > > > ---------------------------------------------------------------------- > > For information about J forums see > http://www.jsoftware.com/forums.htm > > > > > > > ____________________________________________________________________________________ > Pinpoint customers who are looking for what you > sell. > http://searchmarketing.yahoo.com/ > ---------------------------------------------------------------------- > For information about J forums see > http://www.jsoftware.com/forums.htm > Ed Keith [EMAIL PROTECTED] Blog: edkeith.blogspot.com ____________________________________________________________________________________ Shape Yahoo! in your own image. Join our Network Research Panel today! http://surveylink.yahoo.com/gmrs/yahoo_panel_invite.asp?a=7 ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
