DBOOK / Math-Calc-Parser-1.005 / Changes 
1.005     2019-10-08 17:39:15 EDT
  - Implement factorial operator lazily to avoid running out of memory (#3)

1.004     2018-12-11 17:07:49 EST
  - Increase Math::BigInt, Math::BigFloat, and Math::BigRat versions required
    to enable bignum and bigrat functionality to avoid incompatibilities.

1.003     2018-12-10 20:55:56 EST
  - Use Math::Random::Secure for rand function if installed
  - Add bignum and bigrat support
  - Add atan2 function

1.002     2018-09-13 11:50:48 EDT
  - Throw explicit error when taking the factorial of NaN
  - Support π as alias for pi

1.001     2015-10-30 15:54:16 EDT
  - Improved error messages to specify function that threw exception
  - More tests, cleanup of code and docs

1.000     2015-07-06 19:49:56 EDT
  - 1.000 release
  - Only allow 0-9 to be recognized as digits

0.018     2015-04-10 01:19:52-04:00 America/New_York
  - Use temp file for testing ath to support 5.6

0.017     2015-04-07 23:21:35-04:00 America/New_York
  - Added ath module for one-liners

0.016     2015-03-25 02:34:12-04:00 America/New_York
  - Add factorial operator

0.015     2015-03-22 21:12:14-04:00 America/New_York
  - Fix exception propagation from parser functions
  - Throw exception on invalid tokens

0.014     2015-03-22 19:11:47-04:00 America/New_York
  - Change int/floor/ceil/round functions to operate on each component of complex numbers

0.013     2015-03-22 16:59:14-04:00 America/New_York
  - Allow error attribute to be used for try_evaluate called as class method

0.012     2015-03-22 16:30:08-04:00 America/New_York
  - Compatibility with older perls

0.011     2015-03-22 16:06:46-04:00 America/New_York
  - Slight performance boost for repeated class method or calc function calls
  - Add round function

0.010     2015-03-21 18:47:19-04:00 America/New_York
  - Fix evaluate to allow inf and nan as numbers

0.009     2015-03-21 18:16:16-04:00 America/New_York
  - Require function names to start with alphabetic character
  - Simplify RPN structure generated by parse method

0.008     2015-03-21 14:48:30-04:00 America/New_York
  - Use real portion of complex numbers for real-number functions and operators

0.007     2015-03-21 14:16:11-04:00 America/New_York
  - Doc updates
  - Add abs function

0.006     2015-03-11 01:53:16-04:00 America/New_York
  - Handle custom functions returning undefined or non-numeric results

0.005     2015-03-11 01:04:01-04:00 America/New_York
  - Fix add_functions and remove_functions modifying default function hash

0.004     2015-03-05 00:37:52-05:00 America/New_York
  - Fix Exporter usage on older perls

0.003     2015-03-03 19:29:19-05:00 America/New_York
  - Remove namespace::clean dependency

0.002     2015-03-03 11:13:24-05:00 America/New_York
  - Fixes for compatibility with older perls

0.001     2015-03-03 03:18:47-05:00 America/New_York
  - First release