WP-34S Revision 1653 Feedback



#2

I just flashed the Rev 1653 firmware. A few observations:

1. The previous discussion of FIX, SCI, ENG, ALL, setting DECM mode while in Integer mode has been realized.

2. Some good descriptions have been added to the manual - I assume this is Walter's work. Many thanks!

3. With respect to returning to DECM mode. Page 22 of the manual says that [->][H.MS] will return to DECM. However, when I try this from Integer mode, I get the error: "Bad Mode Error". My key presses for [->][H.MS] are: [->] [f] [STO]. Am I misunderstanding what is intended here?

Many thanks, and this new revision is looking great (especially the additions to the manual)!


#3

Quote:
3. With respect to returning to DECM mode. Page 22 of the manual says that [->][H.MS] will return to DECM. However, when I try this from Integer mode, I get the error: "Bad Mode Error". My key presses for [->][H.MS] are: [->] [f] [STO]. Am I misunderstanding what is intended here?

A documentation error I suspect. No [->] is required as far as I was aware.


- Pauli


#4

Thanks for the clarification.

#5

4. Running a simple SOLVE to compare against the 15C LE:

LBL A
x^2
5
-
RTN

On the 15C LE, this yields 2.2361 with intial guess of 0 and 10 in the Y and X registers, respectively.

On the WP-34S, I initially get the "Solve Failed" message, but after clearing the message with EXIT, the correct result is displayed in X.


#6

This stems from the error estimate in Z not being approximately zero.
Try again in e.g. FIX 04 and it will work properly.

Seems that check is a bit too aggressive.


- Pauli


#7

Ok. Thanks again!

#8

Quote:
I just flashed the Rev 1653 firmware. A few observations:

1. The previous discussion of FIX, SCI, ENG, ALL, setting DECM mode while in Integer mode has been realized.


Except ALL, that had been in the manual for long already ;-)
Quote:
3. With respect to returning to DECM mode. Page 22 of the manual says that [->][H.MS] will return to DECM. However, when I try this from Integer mode, I get the error: "Bad Mode Error". My key presses for [->][H.MS] are: [->] [f] [STO]. Am I misunderstanding what is intended here?

H.MS as well as ->H.MS work in DECM exclusively as explained in the index. I will change the table you quoted. Thanks for pointing to it.

Walter


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