GrafEq (pronounced 'graphic') is an intuitive, flexible, precise and robust program for producing graphs of implicit relations. GrafEq is designed to foster a strong visual understanding of mathematics by providing a reliable graphing engine that encourages exploration.
This software is a shareware. You will be able to download and test GrafEq during a certain period of time, then, if it does what you need, you will have to acquire the full version from GrafEq publisher. The GrafEq 2.12 free trial version contains an installer and an uninstaller, and has a size of 2368 Kilobytes.
For additional information and support request, please contact directly GrafEq publisher.

GrafEq Screenshot