Math::BigFloat

See the current Perl documentation for Math::BigFloat.

Here is our local, out-dated (pre-5.6) version:

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

    

    

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

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



AUTHOR

Mark Biggar