Plane Geometry Software

By Xah Lee. Date: 1997. Last updated: 2016-05-12.

Many files of various math software are used on this site and can be downloaded free.

Mathematica

Mathematica icon Mathematica is a general purpose software for doing mathematics. There are about 90 Mathematica notebooks on this site, and about 10 Mathematica packages. See Mathematica Packages for Plane Curves.

Mathematica home page: http://wolfram.com/

GeoGebra

GeoGebra is a interactive plane geometry software.

GeoGebra home page: http://www.geogebra.org/ .

As of 2016-05-12, there are ~60 GeoGebra files in this project.

Geometer's Sketchpad

gspIcon Geometer's Sketchpad (GSP) is a interactive plane geometry software.

Geometer's Sketchpad Closed Shop?

There are about 117 GSP files on this site.

For the Mac, here's GSP's file type.

Geometer's Sketchpad Mac OS file type
◇	MINE type	file name suffix	Mac file type code	Mac creator code
sketchs	application/x-gsp	.gsp	GSPb	GSP+
scripts	application/x-gss	.gss	GSPc	GSP+

Note: for GSP versions before 4 (roughly before 2001), the file type for sketch files should be “GSPk”, and the creator code should be “GSP!”