Solve a System of complex equatoins

[Joe Horn]

Most HP solvers, including cSolve, assume "=0" if the input expression is not an equation. You don't have to include it yourself. Prime's help screen for cSolve even says so explicitly:

HP 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.

(10-05-2017 02:19 AM)AlexFekken Wrote:  Perhaps not necessary but perhaps it should. Expressions aren't equations, evaluating is not solving, etc.

There's actually a reason for it working this way. The solvers treat "=" as "-" and solve the resulting expression (which is not an equation) for equality to zero. That being the case, it's more efficient for both the user and the calculator to omit "=0" from the input.