Find minimum or maximum of multi-variable function

[jte]

(08-28-2019 05:29 PM)roadrunner Wrote:  If you plot the equation n the 3D app:

sqrt((X-14)^2+(Y-55)^2)+sqrt((X-23)^2+(Y-95)^2)

Tap Menu/Zoom/Out 4 or 5 times, then go to the plot setup the new Zoom values are not saved. Is there a way to use Menu/Zoom/Out and have the zoom settings saved in Xmin, Xmax, Ymin, Ymax, Zmin, and Zmax?

I've noticed this too and have been meaning to go over the Graph 3D interface, but have now explicitly put this on the list of things to be fixed.