GrafEq PPC 2.1.1
Unlike other graphing programs, GrafEq mathematically proves that its graphs are correct, and can reliably graph a much wider range of relations than any other graphing program or calculator.
GrafEq has many unique features that are designed for classroom use that other software products overlook. For example, the font size may be greatly increased, which is useful for demonstrations.
For more information, including pricing and later updates, please read the documentation or visit the home page.