I am running on a Personal Iris 4D/20. Does anyone have references that gives the execution speed or clock cycles of various (math) functions such as: +,-,*,/,sqrt(),exp() for double and float values? ...Chuan Chee ckchee at dgp.utoronto.ca (cdnnet) ckchee at dgp.toronto.edu (internet) ckchee at dgp.utoronto (bitnet)