has released version 1.5 of their Ch Control System Toolkit. Ch is a superset of C interpreter for scripting, 2D/3D plotting, and numerical computing. Ch Control System Toolkit is designed for modeling, design, and analysis of continuous-time or discrete-time linear time invariant (LTI) control systems.
Ch Control System 1.5 enhances the Web-based control and analysis capabilities, according to
MacTech magazine. It supports most classical and modern control techniques through object-oriented programming based on a control class.
Ch Control System Toolkit costs US$499 for the regular commercial version, but $199 for academic users. It’s compatible with Mac OS X, as well as Windows 95/98/Me/NT/2000/XP, Linux, Solaris, and HP-UX.
Monkeybread Software Germany
has released version 3.2 of their REALbasic plug-in collection. The new version adds around 4,800 functions, methods, and classes. REALbasic is the editing environment from Real Software.