comparing numbers on the WP 34S



#9

I'm still learning my way around this fabulous device, but I've just stubbed my toe on something. I'm trying to compare the value in X with a value stored in a register. I see how to do it indirectly (using the right-arrow). I see how to do it with a register numbered 20 or higher. I see how to do it with a local register. But how do I do it with a global register numbered below 20? When I press 0 or 1 it assumes I want to compare X with 0 or 1 (and yes, I realize these constant comparisons are available).

Can I compare the contents of X with, say the contents of Register 05? Or do I have to do a RCL 05 and then compare X with Y?


#10

Simply press [ENTER] before the register number:

 [f] [x=?]   x=_?
[ENTER] x=? _
[0][5] x=? 05
Dieter

#11

Thank you!

#12

We overloaded the keyboard a little causing a few things like this. STO+ Z is another one that isn't immediately obvious. Locating the '0' and '1' for comparisons without dumping into the alpha keyboard took a couple of go arounds.

- Pauli

#13

You find two pages explaining memory addressing in detail between p. 20 and p. 35 in the manual v3.0, 3.1, as well as 3.2 IIRC (I'm off home right now - a bit closer to Pauli but way north).

d:-)

Edited: 18 Oct 2013, 9:40 p.m.


#14

Okay, now I see it. On page 26 it says that ENTER leaves the alpha-t mode. Thanx.


#15

There is another, no so obvious, shorthand to enter X as a register name: Precede it by a dot. Since X is on the same key this results in a double dot. ENTER dot does the same here but the double dot is quicker to type.


#16

Yeah, some special wishes caused quite some consequences in the layout ...

d:-)


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