"William "Chops" Westfield wrote: >> the C30 docs don't bother defining its normal meaning [of ~] > > They don't. Bad manual. The "complex conjugation" function is > explained because support for complex numbers is a extension of the > compiler. How much space would it have taken to include a list of the > standard C operators and their functions? Bill, I don't think it's a fair statement. Microchip had to make certain assumptions about the intended audience, and I think familiarity with C is a reasonable expectation. Stephen has plenty of other resources at his disposal, such as books on C programming, and the PICList. Vitaliy -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist