In happens when converting to floats. Now, when converting floats to strings, Perl only uses a limited (6?) number of digits after the decimal point, if the number before the decimal point isn't 0. In this case (and many others), this cancels out the loss of significance.

In many cases, you will not notice the difference, Perl will just "do what I mean". But sometimes, you'll be surprised. String to float and back isn't always free.

In reply to Re^4: substitution "0" in decimals by JavaFan
in thread substitution "0" in decimals by Sun751

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