RE: [PHP] Math Weirdness

On Tue, 2008-07-15 at 10:16 -0500, Jay Blanchard wrote: > [snip] > for most of what the majority of php/script apps deal with, it's > probably > safe to assume that addition/subtraction will be safe, but i can think > of > numerous examples where this isn't true... > [/snip] > > As demonstrated by the example I provided, just checking the difference > (or lack thereof) between two floats brought the issue to light. > > I think that this falls into the same category that cleaning input data > does in the fact that it should always be done. While there is a joke > about "skimming" the diffs it just demonstrates that the mathematical > constructs we use based on a digital platform leaves room for > error...and the errors add up really quickly because the platforms are > so darn much quicker than we are. So what you're saying is that you've been skimming for a while and the fruits of your mislabour are adding up? Cheers, Rob. -- http://www.interjinn.com Application and Templating Framework for PHP