NuCalc

NuCalc, also known as Graphing Calculator, is a computer software tool made by Pacific Tech. It can graph inequalities and vector fields, and functions in two, three, or four dimensions. It supports several different coordinate systems, and can solve equations. It runs on OS X as Graphing Calculator, and on Windows.

History
The Graphing Calculator 1.0 software was bundled with all Power Macintosh computers since its introduction in 1994. Having shipped on more than 20 million machines, it is the most familiar version of the program. This version of Graphing Calculator was secretly developed at Apple by Ron Avitzur, an abandoned contractor who felt obligated to complete the project, and their friend and colleague Greg Robbins. NuCalc 1.0 is for 680x0 Macintosh. In 2005, This American Life featured Avitzur's story in episode 284, Should I Stay or Should I go?.

At one time, it was a free download for Mac OS 9, Mac OS X 10.3, and Mac OS X 10.4. However, these may lack some features of 1.0 and may include promotion for the more advanced, commercial version of the software. A Windows version (offered for sale) was renamed NuCalc.

The app has been ported from C++ to SwiftUI.