HP PRIME 04 - Complex Numbers and Systems of equations.

If you are in my class, report the Easter Egg and earn a bonus point. The "Easter Egg" does not affect the correctness of the video, but it tells me which of my students watched the video with critical eyes to detail.

[@alistercarmichael4990]

I got one of these calculators a few weeks ago as an update to my original Casio graphics that I swear I could do polar calculations with. The aliens have clearly returned me to the wrong space time. So I missed CAS, faster processing, colour displays and was curious how much further-on we are, if I just went for a no limits calculator (computer aside). What an excellent video to show the ease of use and power of this dedicated machine. You also show easy ways to define exactly what you want and display everything as written. It has to be a game changer.

[@turbodog99]

Solid work

[@elguate96]

Why is Inspector Campbell from peaky blinders using an HP prime calculator now

[@bartivaldez7548]

Very useful videos

[@tommasodimarcojunior9356]

Thank for this video, but can you help in a dupt? When I used matrix to solve it. The solution is a matrix with answers in Cartesian form. Is possible to change all he matrix results to a polar form?

[@rolinychupetin]

I put the matrix in a named variable, then switch to "home" mode and type the name of the variable. Enter and shift [x]. There is your whole matrix in polar form, or in rectangular form if it was originally in polar form.

[@kylegroulx4785]

this is so epic

[@teawizardry]

I've been trying to figure out how to change i to j for months!

[@telescope03]

When I try to solve the equations I get empty brackets why?

[@rolinychupetin]

Possibly, you need to enable the use of complex numbers in the reported answers in CAS settings. Without it, you are asking it (XCAS) to solve the system but prohibit it to report a complex number, hence .... empty brackets (the way of XCAS to tell you, there are no real number solutions).

[@Su-io5vw]

Thanks professor!

[@rolinychupetin]

My pleasure!

[@Su-io5vw]

@@rolinychupetin I love all the videos you make