Math::BigFloat - Arbitrary length float math package

use Math::BigFloat; $f = Math::BigFloat->new($string);

$f->fadd(NSTR) return NSTR addition $f->fsub(NSTR) return NSTR subtraction $f->fmul(NSTR) return NSTR multiplication $f->fdiv(NSTR[,SCALE]) returns NSTR division to SCALE places $f->fneg() return NSTR negation $f->fabs() return NSTR absolute value $f->fcmp(NSTR) return CODE compare undef,<0,=0,>0 $f->fround(SCALE) return NSTR round to SCALE digits $f->ffround(SCALE) return NSTR round at SCALEth place $f->fnorm() return (NSTR) normalize $f->fsqrt([SCALE]) return NSTR sqrt to SCALE places

All basic math operations are overloaded if you declare your big floats as

$float = new Math::BigFloat "2.123123123123123123123123123123123";

**number format**- canonical strings have the form /[+-]\d+E[+-]\d+/ . Input values can have inbedded whitespace.
**Error returns 'NaN'**- An input parameter was ``Not a Number'' or divide by zero or sqrt of negative number.
**Division is computed to**-
`max($div_scale,length(dividend)+length(divisor))`

digits by default. Also used for default sqrt scale.

The current version of this module is a preliminary version of the real thing that is currently (as of perl5.002) under development.

Mark Biggar

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