HP Forums

Hello, everyone

If I copy a result from an earlier calculation on my HP Prime calculator, it will be copied incorrectly.

Is that my fault?

Can you show us a screenshot?

Hello KeithB

Many thanks for your response.
In my main post I have included a "gif" in which the problem can be seen. Since this might not be displayed correctly, I added a picture here:


https://i.ibb.co/16jbvvz/HP-Prime.png

In what sense would this be fatal?
Okay, the parentheses got moved. But that did't break the value or the consecutive calculation, did it?
I don't see anything going fatally wrong here.

Hello Stephan P.

Thank you, too, for your answer.
It really doesn't look too bad at first look. But the position of the parentheses is important.

Let me show you:

It seems the "Intelligent Math" option isn't very intelligent. :-)

The strange thing is that with "Entry: Algebraic", Textbook Display: [ ]", "Intelligent Math: [x]":

(10^(1/4))^3 => 10^(1/4)^3

which is incorrect, but with "Textbook Display: [x]" it gets displayed as:

\(\left(10^\frac{1}{4}\right)^3 => \left(10^\frac{1}{4}\right)^3\)

which doesn't match the incorrect non-textbook display, even though the incorrect non-textbook display is what gets copied when selected.

(12-01-2021 08:44 PM)Lakeboard Wrote: [ -> ]Let me show you:

Ah, my bad. I overlooked the exponent 1/64. Probably a bit fuzzy in the early morning, I was.

I cannot reproduce this on my Prime, though.
Which firmware version are you using and particularly what settings do you use in Settings page 1 and 2?

Ah, got it.
It's the option Intelligent Math on Settings page 2.
(I've not used this before)

Well, that's definitely something the team wil have to look into.

Many thanks for your help. Especially for checking @ ijabbott and Stephan.

Apparently, it is really a software bug.

So what can we do to report this issue and receive a new firmware update?
I tried to contact my local HP office. But they didn't respond.

I've reported the issue with the product manager.
As to the release of a solution it's wait and see.

Thank you, Stephan, for reporting. That’s really great!

Let's hope that there will be a new firmware soon and that the problem will be resolved.

Stephan, I may have discovered another little thing.

In CAS mode, if the imaginary number is a floating point, the angle is output as radians.

Can you also report this? Unless it is intended. But it doesn't seem that to me.

Here is a picture:

That arg() bug seems to be in the Giac/Xcas code, so one for Bernard Parisse to look at.

Here is a giac session running in a Linux terminal. The angle_radian variable seems to have changed from 0 to 1 by itself after
arg(5+6.001i)

(12-02-2021 02:21 PM)Lakeboard Wrote: [ -> ]Many thanks for your help. Especially for checking @ ijabbott and Stephan.

Apparently, it is really a software bug.

So what can we do to report this issue and receive a new firmware update?
I tried to contact my local HP office. But they didn't respond.

Thank you for noticing. We will add it to the bug tracker and work on a solution asap!

There is indeed a bug, now fixed in giac source, thanks!

Many thanks to KlaasKuperus and parisse.
It is incredibly nice that such bugs are fixed and that the product is actively developed and supported.
It's a great service to the community.
Thank you very much! =)

Together for a great product.

Also thanks to ijabbott for specifying the complex number problem.