On May 4, 6:48 pm, Nama <forums6...@mac.com> wrote: > If that is the case, then what would be the replacement for: > (Q/2+Q^2/6+Q^3/12+Q^4/20+Q^5/30) Er, Q*(1/2+Q*(1/6+Q*(1/12+Q*(1/20+Q/30)))) Cheers, Nick.