Scientific Calculator Keyboard Challenge

[walter b]

(05-11-2014 10:02 PM)Eddie W. Shore Wrote:  

(05-05-2014 08:21 PM)walter b Wrote:  @Eddie: Come on, you can do better!

How about this? I think this is close to a HP 10C or 25. This model is RPN only.

Far better (readable ). Some questions and nasty remarks in random order:

• IIRC it's the first scientific without a SQRT - no, I finally found it. I'd vote for swapping ABS and SQRT.
• Obviously you are a statistics aficionado. Never really understood what people find fascinating in population standard deviations.
• Function grouping leaves significant space for improvement. Ergonomics as well.
• Placement of ENTER is quite unconventional. Well, it's next to the arithmetic keys.
• You can set DEG or RAD but I can't find how to convert.
• A programmable without LBL ? 1000 steps without labels?? Fascinating ...
• Usually, I store for recalling - so I use RCL more often than STO. I'd vote for making RCL unshifted.
• Are you sure about n,r ? I'd expect y_hat,r instead.
  

Just my 20m€ as usual. YMMV

d:-)

Edit: Just saw you took care of the LBL commands already. So drop that remark ...