Bug with +/- key
10-27-2016, 07:50 PM
Post: #1
 John Colvin Member Posts: 170 Joined: Dec 2013
Bug with +/- key
If I enter a fraction in single quotes onto the stack in RPN mode and then change the sign (+/- key), the sign of the fraction on the stack changes correctly, but if I change the sign again by pressing the +/- key again, it adds a + sign ahead of the previous minus sign.
example: stack: 1/2
after first sign change: -1/2
after second sign change: +-1/2
after third sign change: -+-1/2
and so on.
I am using Version 10077 of the firmware, so I don't know if this bug has been fixed in the latest firmware version.
10-27-2016, 09:03 PM
Post: #2
 toml_12953 Senior Member Posts: 1,215 Joined: Dec 2013
RE: Bug with +/- key
(10-27-2016 07:50 PM)John Colvin Wrote:  If I enter a fraction in single quotes onto the stack in RPN mode and then change the sign (+/- key), the sign of the fraction on the stack changes correctly, but if I change the sign again by pressing the +/- key again, it adds a + sign ahead of the previous minus sign.
example: stack: 1/2
after first sign change: -1/2
after second sign change: +-1/2
after third sign change: -+-1/2
and so on.
I am using Version 10077 of the firmware, so I don't know if this bug has been fixed in the latest firmware version.

10637 keeps adding minus signs for every press of +/-. Of course the 1/2 isn't a number so who knows what should happen!

Tom L

Tom L
I think therefore I am-Descartes
I think therefore you are-Gorgias
You're not here to think-Army Sergeant
10-28-2016, 07:49 PM
Post: #3
 John Colvin Member Posts: 170 Joined: Dec 2013
RE: Bug with +/- key
The +/- key should toggle the sign on the number. I think that since the Prime has a totally separate CAS environment, that while in HOME-RPN, the rational number 1/2 is interpreted as an expression that divides two numbers as opposed to a single number.
Still it would be nice to have it so that the +/- key would toggle the sign on rational expressions as does the 50G.
10-28-2016, 10:01 PM
Post: #4
 eried Senior Member Posts: 725 Joined: Dec 2013
RE: Bug with +/- key
(10-28-2016 08:13 PM)moonbeam Wrote:
(10-28-2016 07:49 PM)John Colvin Wrote:  The +/- key should toggle the sign on the number. I think that since the Prime has a totally separate CAS environment, that while in HOME-RPN, the rational number 1/2 is interpreted as an expression that divides two numbers as opposed to a single number.
Still it would be nice to have it so that the +/- key would toggle the sign on rational expressions as does the 50G.

How do y'all key this? I can't reproduce it on my Prime.

Set entry mode to RPN.

My website: erwin.ried.cl
10-28-2016, 11:38 PM
Post: #5
 John Colvin Member Posts: 170 Joined: Dec 2013
RE: Bug with +/- key
(10-28-2016 10:33 PM)moonbeam Wrote:
(10-28-2016 10:01 PM)eried Wrote:  Set entry mode to RPN.

That's a given, but then?

I'm typing SHIFT-() to get the '...' template, fill in 1/2, and no matter where I place the cursor +/- only toggles the unary minus (in place or in front of any number the cursor is at or in).

Enter the fraction in single quotes onto the stack and then use the +/- key to toggle the sign.
10-29-2016, 01:12 AM
Post: #6
 toml_12953 Senior Member Posts: 1,215 Joined: Dec 2013
RE: Bug with +/- key
(10-29-2016 12:02 AM)moonbeam Wrote:
(10-28-2016 11:38 PM)John Colvin Wrote:  Enter the fraction in single quotes onto the stack and then use the +/- key to toggle the sign.

Ah. It works fine until you hit Enter, afterwards it keeps adding - signs to the thing on top of the stack.

Right. That's exactly what I'm seeing. Every press pus another minus sign in front.

Tom L

Tom L
I think therefore I am-Descartes
I think therefore you are-Gorgias
You're not here to think-Army Sergeant
03-19-2017, 01:14 PM
Post: #7
 metawops Junior Member Posts: 2 Joined: Oct 2016
RE: Bug with +/- key
It's still in the latest firmware, 2016 08 29 (10637).
03-19-2017, 03:58 PM
Post: #8
 grsbanks Senior Member Posts: 922 Joined: Jan 2017
RE: Bug with +/- key
Happens also on 11226 (Virtual Prime) and on 11456 (Android app).
03-20-2017, 03:35 PM
Post: #9
 Tim Wessman Senior Member Posts: 2,169 Joined: Dec 2013
RE: Bug with +/- key
It just isn't a high priority issue because it is in essence a cosmetic issue for a non-standard operation (toggling signs repeatedly over and over and over and over...) and so hasn't been worked on. It doesn't impact calculations in any way.

Hence, the priority behind other things is much lower.

TW

Although I work for the HP calculator group, the views and opinions I post here are my own.
03-20-2017, 03:42 PM (This post was last modified: 03-20-2017 03:43 PM by toml_12953.)
Post: #10
 toml_12953 Senior Member Posts: 1,215 Joined: Dec 2013
RE: Bug with +/- key
(03-20-2017 03:35 PM)Tim Wessman Wrote:  ...the priority behind other things is much lower.

Such as? Yes, I know you can't tell us!

Tom L

Tom L
I think therefore I am-Descartes
I think therefore you are-Gorgias
You're not here to think-Army Sergeant
03-20-2017, 05:32 PM
Post: #11
 math7 Member Posts: 163 Joined: Feb 2017
RE: Bug with +/- key
I think it's not hard to fix for the next update. It is good that the HP people direct their eyes towards these forums, because the success of this calculator depends a lot on how the sea received and valued by the community of users and programmers !!!
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