To perform calculations, you typically need data from software as input:

: Some instructional videos provide download links in their descriptions, though these should be used with caution to ensure the source is safe.

Some versions are distributed via email by the primary developers—such as Jesús Sánchez-Márquez or David Zorrilla —to ensure users receive the most current updates.

The keyword often attracts users to third-party sites. Always prefer the official source for safety.