WP 34S --> WP 31S

[Jeff O.]

(04-02-2014 02:20 AM)Jonathan Cameron Wrote:  We have integrated Bit's ydisplay mod into the WP-31s code. Marcus has built a version ...

Excellent, I was hoping the y-display mode would be included soon.

(04-02-2014 02:20 AM)Jonathan Cameron Wrote:  We would like you to try this update and let us know if you encounter any issues with it, or just like it, please let us know!

Considered it tried, I like it! I am hopeful that Eric will produce overlays so this can go into production.

Only one comment so far on operation. Perhaps UNDO is a work in progress, but seeing as how this is the first appearance of such a function on an RPN calculator, I had to try it. I'm not quite sure if it operates exactly as I would have expected. For example, if I do 1 ENTER 2 +, then UNDO, I would hope to get a 1 in y and a 2 in x. Instead, I get a 1 back in both x and y. If I do 1 ENTER 2 swap swap (so that 1 is in y, 2 is in x and stack lift is enabled) + UNDO, I do get 1 in y and 2 in x. I can see that in the first case, prior to the + operation, technically there was a 1 in both x and y as the 2 had not been entered yet. But I believe that classically speaking, as soon as you hit the +, the 2 is supposed to be entered into the x register, so the state of the machine should be as in the second case, i.e. 1 in y, 2 in x and stack lift enabled. Hopefully my description of the actual and desired behavior is clear.

Please don't take the above as criticism, overall this is really great work.