What can I do to prevent this kind of rounding error ?

Update: This is for the main part a rehash of what haukex had posted 5 hours earlier ... something I had failed to observe first time round.

You could change the last line of your code from:

print "$_ => $x\n";
to
printf "$_ => %.2f\n", $x;
Any module that does decimal (as opposed to binary) arithmetic would also provide correct results.
These modules include Math::BigFloat, Math::Decimal and Math::Decimal64.

Cheers,
Rob

In reply to Re: Problems with number resolution by syphilis
in thread Problems with number resolution by Anonymous Monk

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