is an easy-to-use program for graphing equations encountered in the secondary pre-calculus mathematics curriculum.
It includes linear functions, polynomial functions, conics, trigonometric functions, exponential functions, and relations involving absolute value. Equations may be entered in virtually any math format.
The program also features successive refinement subtractive plotting, which deletes regions of the plane that do not contain solutions, revealing only (single pixel) regions that do. This technique enables the graphing of implicit relations, in which no single variable can be readily isolated. Such relations cannot be graphed at all by the typical computer graphing utility or graphics calculator. Subtractive plotting also permits the plotting of singularities.
The program includes demonstration files.
GrafEq (32-bit) runs on
Windows 95/98/Me/NT/2000/Windows 10/11
and is available under the
Shareware
license
— the installer is 2 MB.
We’ve catalogued it under
Equation Graphing.
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