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Virtual and Real Calculator differences
06-20-2015, 07:25 AM
Post: #1
Virtual and Real Calculator differences
Both Virtual and Real HP Prime Calculator Have Version 2015 4 27 Rev 7820
in Virtual Cas screen create a matrix and put
m1:=[1,2,3_(Ohm),0]
[0,0,0,1_(Ohm)]
Do the same with the Real HP Prime.
Now in Real HP Prime m1(1,1) give 1. also m1(1,3)+m1(2,4) gives 4_Ohm as expected.

In Virtual HP Prime m1(1,1) gives an error. So does m1(1,3)+m1(2,4).
Also in Virtual try m1(-1). It crashes.
In the real HP Prime m1(-1) gives an error. Invalid dimension. Also does it if m1 only contains integers.

PLEASE: Can these inconsistencies between Virtual and Real Primes be fixed.
I use Virtual a lot now to test, as it is a lot faster to do things via the keyboard.

NOTE: REALLY REALLY LIKE ANote, AProgram and AFile. Very clever.

Finally, how do you get a col back from a matrix in Home and CAS.

Thanks in advance.

Cheers,
Hamilton.
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06-20-2015, 09:53 AM
Post: #2
RE: Virtual and Real Calculator differences
Not seeing any of those issues here (see attached virtual calc and hardware screen captures):


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06-20-2015, 06:32 PM
Post: #3
RE: Virtual and Real Calculator differences
(06-20-2015 07:25 AM)hamilton.milligan@outlook.com Wrote:  In Virtual HP Prime m1(1,1) gives an error.

What's your current app? If it's Spreadsheet, m1 can refer to cell m1.

<0|ΙΈ|0>
-Joe-
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06-21-2015, 03:36 PM
Post: #4
RE: Virtual and Real Calculator differences
Thanks. Your a gem.
A bit weird it comes back as a list when you see it as a matrix.

A big Thanks. Lesson learnt. name your variables very carefully

See image. I assumed that matrix(-1) would work with all matrixes. I.e give me then nth column.
casmatrix(1) gives the correct result for both matrixes in the CAS screen.
row(casmatrix,1) and col(casmatrix,1) give the correct result.


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Cheers,
Hamilton.
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06-21-2015, 03:41 PM
Post: #5
RE: Virtual and Real Calculator differences
(06-21-2015 03:36 PM)hamilton.milligan@outlook.com Wrote:  See image. I assumed that matrix(-1) would work with all matrixes. I.e give me then nth column.
second time lucky.


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Hamilton.
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