3d Param Eq

This HyperCard stack draws isometric projections of three-dimensional curves and surfaces (wire-frame). Curves are described with 3 equations in one parameter, and surfaces with 3 equations in two parameters. The curves and surfaces can be exported to coordinate files for the freeWare program "Rotater" (http://raru.adelaide.edu.au/rotater/). There are various export options, like choosing between the 7 available colors, exporting dots or lines and varying the color according to the z-value of each coordinate. The number of digits after the decimal point can be chosen between 0 and 20. Requirements: HyperCard 2.0 (or better) or the HyperCard Player. FreeWare