Re: what did I just see..?

Welcome to the world of floating point arithmetic!

Short version: 0.01 can not be represented exactly as a floating point number, there's a tiny error here. Since you always subtract the same number, this error accumulates to the point where the difference shows up.

Long version: What Every Programmer Should Know About Floating-Point Arithmetic.

Comment on Re: what did I just see..?

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Re^2: what did I just see..? by Anonymous Monk on Mar 22, 2021 at 04:47 UTC
:) Is this odd behavior a floating point problem?, http://floating-point-gui.de/ What Every Programmer Should Know About Floating-Point Arithmetic or Why don’t my numbers add up?	[reply]