A programmable calculator with graphical output which lets you visualize expressions and formulas as graphs in a chart. The program can create animated video clips from a sequence of graphs which you can view with any media player. GraphiCal has more than 50 built-in mathematical functions, and can integrate and find roots and extrema of functions. It is programmable, with user-defined variables and functions. GraphiCal offers DLL programming interfaces for VB and VC, has a very user-friendly graphics system and because it runs compiled code, it is very fast.