Dear Kenneth Hurray, good for you, good for me, good for all, there is the answer!
For slowly converging series, there is no substitute for do. loops, not now, not in the foreseeable future finally got your timing program to work, got all the little symbols in the right places, not sure yet what it does. For i.1e9 i got a new error: limit error, not an 'oom' out of memory error, that with a 4 GB RAM mac book pro running 32 bit J. with an hp ipaq hx pocket pc I got an 'oom' error at ts 'i.1e7' bit odd also my mac book pro, previous edition , for ts 'i.1e8' gives me faster values than yours ? .512845 5.36872e8 thanks thanks ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
