WP 34S --> WP 31S

[jwm]

(01-30-2014 09:11 PM)walter b Wrote:  Let's try to reduce the function set of the WP 34S to lower the entry step for possible RPN juniors. This would lead to a WP 31S which is still "scientific" (should read: technical), but drops programmability and the ... hmmh ... more arcane mathematical functions. So it's boiled down to a "basic scientific" calculator of today, containing a pure subset of 128 functions of the WP 34S function set. It's still way more than a 4-banger, but featuring only one shift key it's way less frightening than a WP 34S. I put the keyboard layout and the index of operations (just showing the full access paths to each and every operation) into a little pdf attached. Hope it suits the target group.

As usual, comments, remarks, etc. are most welcome.

d:-)

I had a similar idea, was actually thinking of making it as close to a 15C clone as possible, perhaps omitting the matrix routines. Then I could use the firmware to reflash my 15C LE, since HP doesn't seem interested in fixing its bugs. I also much prefer the 15C's seamless complex number support as opposed to the multi-stack-location version of the 34s or 33s.

one nit about your layout, make the 'f' key right above the 'on' button to be consistent with most other HP calculators.

John