WP 34S --> WP 31S

[walter b]

(03-05-2014 08:46 AM)Harald Wrote:  

(03-04-2014 06:40 PM)walter b Wrote:  Please allow me to disagree. X, ..., D, and L make sense for obvious reasons.

Ok, allow me to disagree as well
While X, Y, Z, T and T need to be present for obvious reasons, there is no real need for them to be accessible via STO and RCL. Stack manipulations are useful for programming, aren't they?

Correct, though direct access doesn't hurt, does it?

Harald Wrote:We probably won't agree on A, B, C and D. They are for the 8 level stack, which in my opinion is only necessary for complex mode.

That's an old story. I admitted I (ab)used complex 'mode' just as the entrance gate for an 8-level stack. In real life real calculations, 4 levels are tight sometimes. With 8 levels, I don't have to worry about possible stack overflow - it simply won't happen. That's the main benefit of the larger stack. YMMV

Harald Wrote:

walter b Wrote:

Harald Wrote:Maybe using registers A to Z (as on the HP32S) and a dedicated LastX would be an option?
That would save keystrokes as well but preserve more then 10 registers for general use.

The 31S is a strict subset of the 34S (one and only exception is UNDO). We feature neither registers E through H nor M through S nor U, V, W on the 34S. For an entry-level non-programmable scientific, 13 to 17 registers are sufficient IMHO. And comparing f LASTx to RCL L, I don't see where you save keystrokes.

The keystrokes would of course be saved by for example typing <RCL> <V> instead of something like <RCL> <0> <7>.

There won't be anything like <RCL> <0> <7>. There will be only 10 numeric registers.

d:-)