This feels like the right time to publish some of the work I've been doing, on and off, over the past year.Prime Express is the free for life edition of Prime. And because it's free, it's crippled with respect to the full edition that is itself more or less crippled with respect to Mathcad. Numerous functions in Prime are declared 'Premium' functions, and they will not work in the Express edition of Prime. Among those are some very sophisticated functions like rkfixed (numeric approximation of differential equation) and polyroots (find roots of a polynomial), dft and idft (forward and reverse discrete Fourier transform), but also ordinary functions like Re and Im (real and imaginary part of a complex value), mean and stdev (of an array or matrix). Mean and stdev... Premium functions - Seriously? It's a joke!
In the attached Prime 4 file, all of the functions named above, as well as many others, are implemented. This includes all of the Bessel functions, and probability distribution fun
