Re: [Maxima-discuss] Mod function

[Raymond T. <toy...@gm...>]

>>>>> "Robert" == Robert Dodier <rob...@gm...> writes:

    Robert> On 2016-03-30, Raymond Toy <toy...@gm...> wrote:
    >> It seems to me the only way to make it exact is to convert all floats
    >> to the corresponding rational number.

    Robert> It doesn't require converting to rationals. The tricky part is computing
    Robert> floor(x/y) since x/y might be rounded up to an integer. But it's easy to
    Robert> detect that -- if x < floor(x/y)*y then x/y was rounded up. In that case

There's an additional rounding from computing floor(x/y)*y, since y is
floating point.  Without further analysis, I don't know if that would
affect the comparison.

--
Ray