More about Graphmatica
You can get the 220.127.116.11 version of this program 847.5 KB from this website, and you can also find this program as Graphmatica for Win32. It's a trial program created by Keith Hertzer, kSoft, Inc for $25. The Education category, the Science section, to which the software belongs to; it flawlessly deals with the following extensions: .gr. People choose 2.4 and 2.3 versions that can be run on Windows 7/XP/8/8.1/10. Graphmatica.exe and Graph.exe are the most popular setup file names of this tool you may come across.