This version of the program does not work. A "print" statement opens a console window but does not write anything to it. Likewise, a "plot2d" function call opens a graphics window but does not draw anything to it. I would LOVE to see this program perform as advertised because the features and functionality it claims to have are sorely needed in the realm of low cost software. I can't rate the program because it doesn't work. I'll be more than happy to provide a true rating once the authors have fixed the problems.