thanks Don and Ian i.1e6, i.1e7 , i.1e8 in any program line will depending on the machine used yield 'oom' (out of memory) errors
there are a great many slowly converging series in mathematics, that benefit from the amazing speed of J and its good accuracy. I need to learn how to do 'for n=1 to m .. next n' (or for n=0 to m.....next n) loops that are child's play in BASIC or Assembly, etc languages. But I am 'academically' interested what brute force would do with big modern gaming machines with lots and lots of amazing RAM. ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
