Other than those discussion people had before, if precision is so important, for example, this is a finance, or money related program, use bignum.

use bignum;

print 215.88-214.89;

[download]

This gives you 0.99. But you have to fully understand the performance implication by doing this.

In reply to Re: Strange rounding Error in Perl by pg
in thread Strange rounding Error in Perl by kju

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