Best way to convert complex numbers, rect, polar, euler

[CyberAngel]

(09-21-2018 07:38 AM)Anders Wrote:  

(09-20-2018 11:40 PM)Joe Horn Wrote:  It does work in RPN mode, as was requested.

You are kind of proving my larger point that the implementation of the complex number formats standard and functions is screwy.
Certain formats and functions/buttons works in some modes and in others not.
This is confusing the user constantly...

1. There is a [∡] button and it works as it should in Home but not in CAS (super frustrating - forcing people to implement their own conversion functions - see various attempts in the http://www.hpmuseum.org/forum/forum-15.html ).
2. Some complex number formats work in RPN but not in CAS or textbook (home), e.g. 2i4 is interpreted different.

It short it’s a mess.

An engineer (EE, CE in particular), who needs to constantly move back and forth between polar and cartesian coordinates (and calc/pre calc high school student too for that matter), should be able to expect the calculator to accept the same number formats and operate the same regardless of he/she is using RPN, textbook format (home) or CAS.


Wouldn't it be great if we could standardize across all three, e.g. 4i3, 3∡(pi/2) works everywhere - simple notation that saves key strokes.
You can then do things like (4i3) * (3∡(pi/2)) in Textbook (Home) and CAS
or in RPN:
4i3 <enter>
3∡(pi/2) <enter>
* <enter>
and the expected results

"operate the same regardless of he/she is using RPN, textbook format (home) or CAS."

Impossible with the RPN. It *IS* different by it's very nature.

Possible, but not feasible with [Home] vs [CAS],
which still needs a lot of work.

The CAS is never going to change.
It is used in various other platforms
and the sole genius developer has a certain consistent philosophy behind it.
He has already made many special exceptions just for us.
Lucky enough this unmentioned professor still fixes bugs
and even answers questions in this very forum - in English (and French).

Therefore the Home needs to adapt to be more like CAS (or CAS+).
Using CAS("Expression") or CAS.casfunction() you already have extras,
but ... I'm afraid that you're right... it is different.
<sigh>
I suggest you stick to Home for your [∡] problems and learn that environment well.
VPN