Program supports graphing, scientific, and financial calculations. Includes an expression evaluator, unit converter, general ledger, equations solver, and 2D/3D function plotter. http://www.ucalc.com/
Data-analysis, and graph plotting tool suitable for students and engineers. Regression analysis, neural network approximation. With graphics editor to easily add and move points. http://www.uniphiz.com/findgraph.htm
Engineering tool for use by both students and professionals. Over 70 program modules and data tables are organized into one package. http://www.pwr-tools.com/
Offers standard functions, like logarithmic and exponential, trigonometric and inverse, hyperbolic and inverse, square, cube, and corresponding roots; Euler functions; statistical distribution functions; and user-defined functions. [Win95/98/Me/NT/2000] http://www.wrotniak.net/works/kalkulator/
Is an equation plotter with numerical, and calculus features. It can graph Cartesian functions, relations and inequalities, plus polar, parametric, and ordinary differential equations. [Win95/98/Me/NT/2000] http://www8.pair.com/ksoft/index.html
Equation Grapher is a function-plotting and analyzing program, and Regression Analyzer is an analyzing, and curve-finding program for statistical data. http://www.mfsoft.com/equationgrapher/