FAQ 4.2 Why is int() broken?

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4.2: Why is int() broken?

    Your int() is most probably working just fine. It's the numbers that
    aren't quite what you think.

    First, see the above item "Why am I getting long decimals (eg,
    19.9499999999999) instead of the numbers I should be getting (eg,

    For example, this

        print int(0.6/0.2-2), "\n";

    will in most computers print 0, not 1, because even such simple numbers
    as 0.6 and 0.2 cannot be presented exactly by floating-point numbers.
    What you think in the above as 'three' is really more like


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