Graal Forums - Strange Number/Rounding Issues

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WhiteDragon

03-12-2010 08:50 PM

Strange Number/Rounding Issues

I've been working with small numbers recently, and I've come across this issue:

PHP Code:


		
			
echo(0.0009 == 0.0008); // 1

Seemed like a simple precision issue at first... but:

PHP Code:


		
			
echo(0.00091 == 0.00080); // 0

echo(0.00091 == 0.00081); // 0

echo(0.000911 == 0.000812); // 1

I have no idea what the pattern is, but it is currently giving me a lot of trouble.

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