inverse function command

[Albert Chan]

(08-03-2022 05:26 PM)jonmoore Wrote:  

(08-03-2022 04:19 PM)Albert Chan Wrote:  Drawing it is easy, even without "DrInv" command.
Just plot -f(x), then turn the plot anti-clockwise 90°

BTW it's not a -45 degree rotation, it's a reflection.

That's what the sign, −f(x) is for.
Plots gives points (x,-y). Rotate calculator 90°, we have points (y,x)