A free program for Mac, by Scilab Enterprises.

Scilab is a free software for numerical and scientific computing. It has been developed by a large community of contributors from around the world and is supported by a large and growing number of users. It is an open source project, which means that the source code is freely available to anyone to modify and build.

Scilab is built for all kinds of users: from the casual to the professional. From the simple to the complex. From the novice to the expert. It is a software for all kinds of users, with different needs and different capabilities. It is easy to learn and use for both the beginner and the expert.