An XCas question....

[parisse]

(10-14-2017 03:35 PM)webmasterpdx Wrote:  Nah...too expensive :-)
....but maybe someone could convert the Numworks code to run on the HP Prime as an alternative firmware package and add the SymPy library to it (SymPy is the python CAS library). Now that'd be interesting.....

I don't think you really tried :
- the Numworks firmware : it is very incomplete compared to the HP Prime, for example the Calc application has about 50 commands. And if you define a function in the Python app, you can not use it in the Calc app.
- sympy: it's slow, especially if you like integrals. One second on your PC would be more than 1 minute on your calc.

Now a few words about the Wolfram Alpha comparison. As I understand it, Wolfram Alpha is designed to answer something on a few keywords, it is not designed to do a full computing session. At least in the free version, you can't assume something on a parameter as a first query and ask for something in a second query. In other words, it's easier if you want to do something that the system was designed to do but you can not easily do something that the system was not designed to do, unlike in a CAS where you can extend the system with your own programs.
It's not the same design as Giac/Xcas, a comparison with Mathematica (or Maple or Maxima ...) would be more meaningfull.