Package perl-Math-Decimal64: Information

Note that this module is alpha software. It seems to work ok
   for me on MS Windows (compiling with gcc-4.6.3, gcc-4.7.0)
   but, at time of release, is untested elsewhere.

   Math::Decimal64 supports up to 16 decimal digits of significand
   (mantissa) and an exponent range of -383 to +384.
   The smallest expressable value is -9.999999999999999e384 (which
   is also equivalent to -9999999999999999e369).
   The largest expressable value is 9.999999999999999e384 (which
   also equivalent to 9999999999999999e369).
   The closest we can get to zero is (plus or minus) 1e-384
   (which is also equivalent to 1000000000000000e-399).

   This module allows decimal floating point arithmetic via
   operator overloading - see "OVERLOADING".

   In the documentation that follows, "$mantissa" is a perl scalar
   holding a string of up to 16 decimal digits:
    $mantissa = '1234';
    $mantissa = '1234567890123456';

   For many values, it normally shouldn't matter if $mantissa is
   assigned as a number:
    $mantissa = 1234;      # should work ok.

   But on some perls there are values that *need* to be assigned
   as a string. For example, on perls where nvtype is an 8 byte
   'double':
    $mantissa = '-9307199254740993'; # works fine
    $mantissa = -9307199254740993;   # will assign wrong value

   So ... where you see "$mantissa" in the following docs, think
   *string* of up to 16 decimal digits".

Package perl-Math-Decimal64: Information

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