Detect number entry on HP-35s?

[Dieter]

(02-28-2015 09:53 PM)mbrethen Wrote:  This doesn't achieve the goal I started with

I still do not understand what this goal is or was. Could you provide an example?

(02-28-2015 09:53 PM)mbrethen Wrote:  A proposed test for scalar:
...
If E=scalar the equation should always be 0; if E=vector (in terms of matrix position, i.e. never [0,0]) it should be a positive number <>0.

Fine. In the meantime I found a similar solution I was about to post.

Dieter