I am having some difficulty calculating the expression: y=3De^x using = floating point routines on a PIC17C756A platform. Canned routines for = converting integers to float type, floating point multiplication and = divide and converting back to int type seem to work correctly, however = the "extended" math functions illustrated in the Microchip app note #660 = do not want to cooperate - I am attempting to use the EXP32() routine. Any hints regarding this operation would be greatly appreciated. Thanks, Greg Yadzinski Commonwealth Technology Inc. greg@cti1.net Vox: (703) 719-6800 Fax: (703) 719-6631 -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads