About DM32

[Steve Simpkin]

On a similar feature request, since this is a re-write with new code, I am hoping the Equation Solver on the DM32 will be a bit less complicated to use than the one on the HP 32SII. As an example, the HP 32SII solver can use two initial guesses provided by the user to help solve an equation. For these two guesses the solver uses the current value in the X register and the current value of the unknown variable. In many of the solvers for other HP models, these guesses are often optional. In some very simple cases on the HP 32SII, *both* guesses are mandatory or the solver will fail immediately with a math error. For example, try to solve the following equation for X.

Y=1÷X

If you do not supply a non-zero value in the X register *and* in the variable X (two guesses), the solver will immediately return a "DIVIDE BY 0" error with no results from the solver. The solvers in many other HP models that have an equation solver (HP-48, HP-27S, HP 35S, etc) will solve this problem correctly with no guesses at all. I realize the ROM space in the HP 32SII may have been too limited to make the solver more robust and less reliant on guesses but this rewrite has the capacity to do better.