On Apr 23, 2005, at 1:35 PM, Mike Ryan wrote: > I need to perform basic integration and basic differentiation using > 8 bit algorithms in assembler, > > Would you know the basic approach or where I could find out how to do > it, > The basic approach should be described in any beginning numeric algorithms book, and consists essentially a return to the basics of calculus - picking lines that approximate the slope on your graph, or adding together rectangles/trapazoids/etc. HOWEVER; those algorithms are likely to be heavily based on relatively accurate floating point (part of the numeric analysis class is learning to keep track of the errors that accumulate in spite of having 32+ bits of number.) You're likely to need an awful lot of thought applied to doing things with 8 bit integers instead. (just for instance, differentiation is the slope of a line, and it's going to be less than 1 about half the time...) BillW -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist