LXlogo is an interactive LOGO programming environment for K-12 educational use or just for fun. It is easy to install with minimal system requirements, and is a modern variant of the familiar "turtle" LOGO language. Logo is interesting because it gives students immediate graphical results with just a few commands or lines of code, and allows students to gradually become familiar with geometric concepts, and how to write programs and think procedurally. As students move beyond the beginning stages, they can move on to create fun animations and user interfaces.
FrAid (Fr[actal] Aid) is a programming language that is appropriate for mathematical computations, visualization, batch processing, and more. It features both a standalone application that provides a programming environment for the language and a system for integrating the language with Java. The Java interface allows mathematical equations and formulas to be used with Java code, making it easier to process numerical computations, symbolic computations, imaging, CAD, and more.