> > does anyone know how the calculators calculate the factorial of a > floating number, like 2.1!=2.19762...? > I'm not exactly sure, but I don't think that's possible. I could be wrong, however. I'm going off of something that I read...somewhere. I think it might have been at the discussion group for calculators at TI's page. I recommend checking out the group titled "Other Calculator Topics". Jody Snider jody1@alaska.net