by XoYo Software CalculatorX is an enhanced expression calculator. It supports common operations, constants,built-in and custom functions, variables and note-lines. You can even use Binary, Octal, Decimal and HEXadecimal numbers in one expression to evaluate as well.
by P.W. Hunter Free math/graphing program that will allow you to develop and visually analyse mathematical expressions quickly and easily. Boasts a unique graphing module that permits expressions with up to 8 parameters to be plotted directly, such as y=Asin(kx+b).
