(This is probably a dup of a known bug ...) 25.4 * 3 comes out 76.1999999... instead of 76.2. See URL for demo. Happens on all versions of our browser up to and including 5.0, and on all platforms we've tried so far.

Clayton, our IEEE wiz, reports: Sigh. Perhaps we really do need decimal or rational arithmetic. Surely this is the same old story. 4/10 == 2/5 isn't exactly representable in binary. Conversion to binary and subsequent multiplication by 3 (probably) creates a binary bit pattern whose nearest decimal representation (to 16 digits) is 1.199999999..... Even the I18N package might fix this since rounding to fewer digits would give the user what she expects. It's not a universal panacea, but delivering fewer digits would stop 99.999....% of these complaints. = C = The basic problem is that you're seeing machine arithmetic. The problem isn't Pentium-style, it's universal to binary representations of numbers. (Which javascript currently uses.) We're dreaming about a decimal-arithmetic package, but it's not currently scheduled.

Javacsript component begin retired. Moving this bug to Javascript Engine.

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*** This bug has been marked as a duplicate of 5856 ***

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