Functions Visualizes and studies functions of one variable to find roots, extrema, integral, derivatives, graph. Results can be saved or printed. You have control of the graph with zooming, panning, centering.
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Farsight FreeCalc easy-to-use Financial&Scientific calculator,support one hundred functions
GIPALS - Linear Programming Environment Linear programming environment to solve constrained optimization problems that are stated as linear programs with UNLIMITED number of variables and constraints.