HP-42s Entering 4 complex numbers on the stack

[Vincent Weber]

(06-10-2023 10:29 PM)Valentin Albillo Wrote:  .
Hi, C.Ret,

(06-10-2023 07:29 PM)C.Ret Wrote:  I'm a little surprised to read that there is no way on the 42S to put four complex numbers in the stack [...] Really, there's no other way than to use a 27-lines program to fill the stack with complex entries?

Of course there is ! Matter of fact you need no program to do it, that's just Mr. Weber doing his thing ...

From the keyboard, do this to enter 1+2i, 3+4i, 5+6i and 7+8i into the RPN stack:

1, ENTER, 2, COMPLEX, STO A {... or any other variable}
3, ENTER, 4, COMPLEX,
5, ENTER, 6, COMPLEX,
7, ENTER, 8, COMPLEX, RCL A, Rdown

... and there you are, simple and effortless.

Regards.
V.

Hi Valentin,

I thought we were on a first name basis, did I do anything wrong to deserve to be back to "Mr. Weber"?

As for me "doing my thing", may I remind you that the challenge I set to myself (admittedly quite futile), was precisely NOT to use an intermediate variable, but to do it directly, which my program does.

I thought you yourself were regretting that entering 4 numbers on the stack was not as straightforward as on the 15C...

Also, my program, as I stated, allows you to mess up with the stack as much as you want between 2 entries, so that the complex numbers can be computed rather than just entered. I thought this was kind of convenient.

Best regards,

Vincent