More about Scilab

Scilab is an open source, cross-platform numerical computational package and a high-level, numerically oriented programming language. It can be used for signal processing, statistical analysis, image enhancement, fluid dynamics simulations, numerical optimization, and modeling, simulation of explicit and implicit dynamical systems and symbolic manipulations.

Scilab
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More about VMKit

Current MREs are monolithic. Extending them to propose new features or reusing them to execute new languages is difficult. VMKit2 is a library that eases the development of new MREs and the process of experimenting with new mechanisms inside MREs. VMKit2 provides the basic components of MREs: a JIT compiler, a GC, and a thread manager. VMKit2 is a fork of the VMKit project.