If you are using integers, and want to use Math::BigInt:


Math::BigInt - Arbitrary size integer math package

DESCRIPTION

All operators (inlcuding basic math operations) are overloaded if you declare your big integers as

  $i = new Math::BigInt '123_456_789_123_456_789';

(snip)


METHODS

round 

  $x->round($A,$P,$round_mode); # round to accuracy or precision using
+ mode $r

[download]

In reply to Re: How do I round a number? by Mago
in thread How do I round a number? by Anonymous Monk

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