On Sat, Dec 6, 2008 at 6:30 AM, Robert Kawulak <robert.kawulak@gmail.com> wrote:
From: Gordon Woodhull
My view is that you just can't actually use any of the built- in operators, but the same operations exist if you figure in a little epsilon. Note that although a very small number like 1e-10 works most of the time, epsilon should really be proportional to the size of the arguments.
The epsilon solution has already been proposed, but as I understand this (correct me if I'm wrong) it wouldn't work either:
> From: Zach Laine
> Yet another use case would be "close enough is good enough". If the > bounds are within a user-defined epsilon of either boundary.
If I understand correctly, this does not solve the problem either. Let's assume you have two values: x and y, where x = y + eps (eps being the user-defined margin of error). One comparison of x and y would indicate their equality (the difference is not greater than eps), while another one might not if x got truncated in the meantime (and y didn't).
I tried to suggest a way in which the library can deal with this here: http://tinyurl.com/6hlb8o Do you find problems with that strategy? Stjepan