I wrote: > ins=:1 :0 > : > b=.1#~1 j.m e.~i.#y > x (I.-.b)} b expand y > )
Or, equivalently: ins1=:1 :0 : b=.1#~1 j.m e.~i.#y x (m+1+i.#m)} b expand y ) -- Raul ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
