Euler is a numerical laboratory with a programming language. The system can handle real, complex and interval numbers, vectors and matrices. It can produce 2D/3D plots. Included is a modern programming language. All versions are freeware under the GNU general license.
Highlights are
and lots more.
For more information you can view
Source: Anonymous FTP. Or download the Windows 95 Version (also for NT), the OS/2 Version (no longer maintained), or the Unix Version (still with a restricted interface) directly with these links.
Note: For Windows 95/NT, there is also a no-installation version. Simply run euler95.exe to start the program. To remove it, delete the main directory and if necessary, the registry information. I prepared this to show that direct usage from a CD-ROM is possible, and that Euler does not fiddle with your system. Moreover this version is considerable shorter to download.
The source is available under the GNU general license. The main point is that any modified versions remain freeware und must be distributed with a clear reference to this original version.
There is also a version history.
R. Grothmann