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TechPlot
Technical Plotting and Data Processing
Polysoft
P.O. Box 526368
Salt Lake City, UT 84152

In addition to graphing functions of one and two variables, parametric curves and polar and spherical coordinates, the program will also do contour plots, data scatter plots, curve fitting, confidence and prediction intervals.

The printing features of this program have been disabled.

Download techplt1.zip [352 KB].

Download techplt2.zip [497 KB].

Look at the readme file from the program.