Math::BigFloat(3)					     Math::BigFloat(3)

NAME    [Toc]    [Back]

     Math::BigFloat - Arbitrary	length float math package

SYNOPSIS    [Toc]    [Back]

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

DESCRIPTION    [Toc]    [Back]

     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.

BUGS    [Toc]    [Back]

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

AUTHOR    [Toc]    [Back]

     Mark Biggar










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Math::BigFloat(3)					     Math::BigFloat(3)


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