The FSF supports the work of GNU
Octave through its Working Together for Free Software fund. Please consider donating below.
It provides capabilities for the numerical solution of linear and nonlinear problems, and for performing other numerical experiments. It also provides extensive graphics capabilities for data visualization and manipulation. Octave is normally used through its interactive command line interface, but it can also be used to write non-interactive programs. The Octave language is quite similar to Matlab so that most programs are easily portable.
Visit the GNU Octave website.
If you'd like to pay by check or money order, you can do so by sending a check to the main Free Software Foundation address, with 'GNU Octave' in the memo field of your check. Our Bitcoin address for this campaign is 1G838ZRZnVuuGD4irdJXDVEgiViDoA9L7J.