"maxima : googling brings tons of maxima which has nothing to do with
it !!!"
I am not sure what to name it but Maxima is the name of a car and that is what you find when you search for it. I like
the original name Macsyma. Googling that brings up Maxima too. I suggest something similar to Mathematica or MathCad
etc... MathCAS is not in use yet. It brings up "did you mean MathCad", we might get some accidental hits with that
name.
Disclaimer: Marketing products is not my field nor is trademark law.
Rich