On Thu, Jun 4, 2009 at 4:28 AM, June Kim <[email protected]> wrote: > http://groups.csail.mit.edu/mac/users/gjs/6.945/readings/MITApril2009Steele.pdf
Here's a J expression to sum the first n counting numbers: sumn=: -:@* >: +/ 1+i.10 55 sumn 10 55 I am disappointed that Guy Steele's paper did not even have a footnote mentioning this technique. -- Raul ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
