Help in choosing a new calculator

[Marcio]

(09-18-2016 02:59 PM)Marco Polo Wrote:  What you write makes me think you just gave a quick look to the 50g.
Anyway I think that the 50g is an overshoot for your needs.
I would give a look to the 35s. If I am not wrong, it can be configured both as algebraic and rpn.
You can write your own equations and store them but you cannot name them.
Variables name are single letters.
Solver is good, IMHO.

Hope it helps
Regards.

Marco Polo

I will second that. And with a little imagination you can name equations using the EQN features, ie, another equation.

IDEAL GAS LAW
PxV=NxRxT
---
RELATIVITY
E=MxC^2
-----

and so on. The 35s has plenty of memory so you should be able to create a large library of equations.

I do the above to identify long-term stored programs which will accept one letter only:

T - TRAPZD AREA
M - MATRICES
G - CMPLX DECOMP
D - DERIVATIVES
etc...
and then the equations I use regularly. I think it's neat.