# NAME

Math::BigInt::FastCalc - Math::BigInt::Calc with some XS for more speed

# SYNOPSIS

```
# to use it with Math::BigInt
use Math::BigInt lib => 'FastCalc';
# to use it with Math::BigFloat
use Math::BigFloat lib => 'FastCalc';
# to use it with Math::BigRat
use Math::BigRat lib => 'FastCalc';
```

# DESCRIPTION

Math::BigInt::FastCalc inherits from Math::BigInt::Calc.

Provides support for big integer calculations. Not intended to be used by other modules. Other modules which sport the same functions can also be used to support Math::BigInt, like Math::BigInt::GMP or Math::BigInt::Pari.

In order to allow for multiple big integer libraries, Math::BigInt was rewritten to use library modules for core math routines. Any module which follows the same API as this can be used instead by using the following:

` use Math::BigInt lib => 'libname';`

'libname' is either the long name ('Math::BigInt::Pari'), or only the short version like 'Pari'. To use this library:

` use Math::BigInt lib => 'FastCalc';`

# STORAGE

Math::BigInt::FastCalc works exactly like Math::BigInt::Calc. Numbers are stored in decimal form chopped into parts.

# METHODS

The following functions are now implemented in FastCalc.xs:

```
_is_odd _is_even _is_one _is_zero
_is_two _is_ten
_zero _one _two _ten
_acmp _len
_inc _dec
__strip_zeros _copy
```

# BUGS

Please report any bugs or feature requests to `bug-math-bigint-fastcalc at rt.cpan.org`

, or through the web interface at https://rt.cpan.org/Ticket/Create.html?Queue=Math-BigInt-FastCalc (requires login). We will be notified, and then you'll automatically be notified of progress on your bug as I make changes.

# SUPPORT

You can find documentation for this module with the perldoc command.

` perldoc Math::BigInt::FastCalc`

You can also look for information at:

RT: CPAN's request tracker

https://rt.cpan.org/Public/Dist/Display.html?Name=Math-BigInt-FastCalc

AnnoCPAN: Annotated CPAN documentation

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# LICENSE

This program is free software; you may redistribute it and/or modify it under the same terms as Perl itself.

# AUTHORS

Original math code by Mark Biggar, rewritten by Tels http://bloodgate.com/ in late 2000. Separated from BigInt and shaped API with the help of John Peacock.

Fixed, sped-up and enhanced by Tels http://bloodgate.com 2001-2003. Further streamlining (api_version 1 etc.) by Tels 2004-2007.

Bug-fixing by Peter John Acklam <pjacklam@online.no> 2010-2016.

# SEE ALSO

Math::BigInt::Lib for a description of the API.

Alternative libraries Math::BigInt::Calc, Math::BigInt::GMP, and Math::BigInt::Pari.

Some of the modules that use these libraries Math::BigInt, Math::BigFloat, and Math::BigRat.