Which of these two is the more efficient (if there's any difference) and is there any way way mere mortals can tell?
log10 =: 10 %&^.~ ] logb10 =: 10&^inv Further, if I only wanted to find the order of a given +ve integer would it be better to do <. @ log10 (or <. @ logb10) or something like: <:@#@(10&#. inv) Thanks ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
