i/CHANGES.pod

2004/04/24 1.13 Memory Leak and Exp problems solved:

1. Solved a memory leak by using Scalar::Util::weaken(). This has reduced memory consumption when running the test cases from 130M to 37M: intermediate expressions are now being freed. I believe that this has been the source of the erratic failures appearing on various platforms other than my development system, as reported (most helpfully) by CPAN testers and an Mac OSX user, which appear to have been running out of memory.

2. Corrected `exp(-i)*exp(-i)` which was being correctly reduced to exp(0), but should have been reduced further to 1, which was causing the multiply out of `exp(i...)` in `cot(x)` == 1/tan(x) to fail erratically.

2004/04/24 1.12 Included PREREQ_PM in Makefile as a result of notes from automated CPAN testing.

2004/04/24 1.08 Included test cases in manifest.

2004/03/28 Split into three classes. Considerable performance improvements. Added standard Perl Test harness. Unfixed `power()` so we are back to constant powers.

2004/03/14 Fixed `power()` so that it recognizes constant and variable powers. Added TODO List. Finished testSM(): new requirements in TODO.

2004/03/13 Added change log on esteemed advice of Steffen Müller. Made yet another attempt to stop `polynomialDivide()` from producing an infinite series as a representation of a single term. Most of mathematics seems to erupt from the division of one polynomial by another.