calc++ and libmath++ change log:

Version:
    * < 2.0
        - Beta phase.

    * 2.1
        - Major math library reimplementation(1).
        - Symbols and Generator Symbols are no longer handled by calc++, but by libmath++
        - Multi-parameter generetor symbols can be handled now.

    * 2.1.1
        - Expresions now have two symbol scopes: local and global.
        - Boolean operators now suported:
            "=" - equal.
            "!" - not equal.
            "< >"- less than and greater than.

    * 2.1.2
        - Generator symbols nesting is suported.
            ex: func(other_func(a, b), c)

    * 2.2
        - Dynamic loading enabled.
        
    * 2.2.1
        - Fixed the bug on passing parameters to a MGenLibExp
        
    * 2.2.2
        - Standart library/plugin package added to stable release.
        
    * 2.3
        - GUI version released (Qt 4.5)
        - More detailed error messages.


bugs:
    * 2.3 - windows GUI version
        - plugin functions that do NOT return a value (Baskhara, SigExp, Factor...)
          output is printed in stdout stream, not the GUI textbox

(1)
libmath++ v 2.0 was writen from zero,
The old library is totally obsolete.