Version 9.2.0 is available upstream. Please consider updating! It seems that version 9.2.0 is available upstream, while the latest version in the Gentoo tree is 8.3.0. You think this warning is false? Read more about it here.
Octave is a high-level language, primarily intended for numerical computations. It provides a convenient command line interface for solving linear and nonlinear problems numerically, and for performing other numerical experiments. It may also be used as a batch-oriented language.