How to make a complex-valued matrix on the HP Prime?

[Bishamonten]

Whenever I press shift+4(for the matrix menu), and start entering complex values in the matrix, they turn into NaN(not an number). How do I get around this issue?  I'm gonna need that for a lot of AC circuit problems in which the elements of the system of equations are complex valued.

[Maké]

Hi!, @Bishamonten:

See, this video in Spanish Language ... https://youtu.be/SSWMOgBt2eY

And the examples, for HP PRIME, from ... http://www.hpcalc.org/prime/science/

[Bishamonten]

Hi Maké, it does not seem that your video creates matrices normally like you can do with real valued numbers.  Is there no way to create complex valued matrices without the NaN error?

[Maké]

Hi!, @Bishamonten:

I'm not understand what you write. 

NaN = Not a Number

The first video have AC circuits with complex numbers.

Note: The examples of electrical circuits in the site www.hpcalc.org don't serve for you ?.

[mark4flies]

See page 516 in the latest edition of the User Guide. From the Virtual Calculator, select Help > User Guide.

This section will describe how to make vectors and matrices with complex numbers.

[Bishamonten]

Thanks mark4flies!  However, I am following page 516 as it instructs me to do, I enter a complex value in a matrix by pushing enter with 6 + i for example, and when I do that the resulting matrix becomes full of NaN values.

What am I doing wrong here?

[Maké]

Hi!, @Bishamonten:

See, this video ... https://youtu.be/lfFp0Fl1R3M

[mark4flies]

I am not sure. I just made a row vector with a few complex numbers, including 6+i, without any difficulty. I would check your Home settings. The first page has a setting for complex number representation: 'a+bi' or '(a,b)' are your choices. I don't think this setting matters for input, though.

I hope that someone from HP might reply with a better answer. I can't reprioduce your problem so I really don't have any idea what is causing the NaN result. Sorry I can't help you this time.

[Bishamonten]

So you just go to the matrix menu and select one of the matrices M1-M9, and enter in a value such as 6+i?  Are you using textbook input mode or RPN input mode?  I usually go with RPN but I don't mind switching a different input mode just for this to work.

Is it possible that my calculator's firmware needs to be updated?

[Maké]

The matrix for complex number, run OK.

You can update, the ultimate Firmware, from ... ftp://ftp.hp.com/pub/calculators/Prime/

You needed delete all of the previous Firmware, included the Register's.