CHANGELOG

v.02

* A parser has been added to construct expressions from strings. The top-level
  interface can be found in the StringToVar class, while a backend uses lex/yacc
  and intermediate adapter functions. Numerics, all Functions implemented,
  Symbols with limited super-/subscript naming schemes etc. can be parsed.

* Better handling of trigonometric and inverse trigonometric functions:
  automatric simplification as fractions, e.g. sin(a)/cos(a) = tan(a) plus a fix
  of inverse trigonometric functions of trigonometric functions for function
  arguments, that can be numerically evaluated.

* Fix (portability) issues in several development utility scripts and for
  compilation, testing or code generation on 32bit machines.

* Additional build/version information in auto-generated header. Headers don't
  depend on NDEBUG macro anymore.

* Minor fixes for static destruction order problems, trivial gcd cases, CppUTest
  compatibility (mainly reported memory leaks), makefile enhancements, fixes of
  the meaningless comparisons between two Undefined expressions.

v.01

* Basic setup of computer algebra algorithms for automatic simplification, gcd
  computation and solutions of linear equations. Algorithms specific to computer
  algebra are implemented following Cohen, Computer Algebra and Symbolic
  Computation [2003], though some details like the automatic simplification of
  numeric powers are different.

* Small set of API classes. Var, Number, Int, Vector, Matrix as basic types,
  where Var is supposed to be the general purpose expression type (symbols,
  numeric types, functions...). In addition, some common functions and constants
  in the tsym namespace, e.g. sqrt, sin/cos, Pi etc.