has released Ch 4.5 and Embedded Ch 4.5, new versions of their C/C++ interpreter for scripting, 2D/3D plotting, numerical computing, shell programming and embedded scripting. Ch supports multiple platforms including Mac OS X.
The new version sports the addition of C++ features, file name completion including a tab key in command shell, easier interface with binary C/C++ libraries and embedded scripting and bug fixes.
Ch Standard Edition is available for free for commercial and non-commercial uses. Ch Professional Edition is free for academic use but costs US$399 for personal and commercial use.