CalcExp is designed as an alternative to the system build-in calculators. CalcExp runs on Windows 2K/XP/Vista, MacOsX, Linux, and Solaris. The main features are:

1. All-in-one Calculator:
Can be a good alternative to the system build-in calculators and hand-hold calculators. It makes your calculating faster and safer.

2. Powerful Number formatting:
You have many options to choose for formatting the result number, such as: Locales, Fraction Digits, Scientific Notation, Hexadecimal Displaying, etc, while the windows calculator can't do that for you!

3. Friendly User Interface:
Want it always stand on top? or want hide it as a systray icon? yes, you can do that.
Want unlimited undo/redo when editing the expression? Just press Ctrl+Z/Ctrl+Shift+Z.
Want record an expression, then recall it later? Save it in history list.

4. Skin Changeable:
7 Skins(themes) created by professional artists; the font is clear and easy to read.

5. Web Launch:
revolutionary...