HP Prime or HP 50g

[JDW]

(07-11-2018 01:42 AM)Joe Horn Wrote:  Yes, Prime supports complex numbers. If I were to GUESS what the author of the quote in question means, I'd GUESS that they want the built-in solver to return complex solutions, which is strange, since Prime already has the cSolve command which does exactly that. Here's the Help screen for cSolve:

Prime Wrote:Syntax:
cSolve(Expr,[Var])

Returns the solutions, including complex solutions, of Expr, for Var.

If Expr is an expression, solves the equation Expr=0.

Examples:
cSolve(x^4=1,x) → {-1,i,1,−i}
cSolve(u*v-u=v and v²=u,[u,v]) → {[0,0],[(1/2*(√5+1))^2,1/2*(√5+1)],[(1/2*(-√5+1))^2,1/2*(-√5+1)]}

Yesterday, I wrote an email to Bernard, author of the EE library for the HP Prime. He replied back to me saying this:

Quote:Z0 to Z9 are Global variables reserved by the system for Complex Numbers.
Enter the following:
Go to the Solver App.

In E1 Enter Z3=Z1+Z2
Press Num & in Z1 enter 2+3*i and Z2 enter 4+5*i and solve Z3.
Not possible. Complex Numbers do not work in the Solver App as they do in the 49&50g.

So that would appear to be his reason why his EE library cannot be more comprehensive for the Prime until "complex number support is added to the HP Prime solver."

Thoughts?