C# float bug? 0.1 - 0.1 = 1.490116E-08

Question

What\'s going on?! Subtraction works fine until I get to 0.1 - 0.1. I\'m in visual c# 2008 using the nonoba.com API.

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Answer 1

Slighly offtopic, but here's an interesting read that describes why cos(x) != cos(y) can be true even if x == y:

http://www.parashift.com/c++-faq-lite/newbie.html#faq-29.18