HP48GX User Guide Cover Plot

[DM48]

(12-07-2021 04:30 PM)nlj Wrote:  

(12-07-2021 12:18 PM)DM48 Wrote:  Plotted. I just need to determine how to rotate it if possible. Any ideas?

Maybe something like:

EQ: Z = Y^2 - X^2
XE: -1.4
YE: -2
ZE: -0.6
Step Indep: 14 Depnd: 10

and a window of -1 to 1 for X, Y, and Z.

It looks quite close but I have a nagging suspicion that it is inside out and an optical illusion flips it in the mind's eye from front to back!



In comparison to the one on the cover of the manual:

Thank you. I was able to reproduce your results using YOUR equation. Many thanks. It's close to the user guide, but not quite the same perspective. I will work on it.

I am going to continue to look at the equation that seems to be the one HP is convinced they used, but I am not so sure it is. Interesting issue!