I want to plot a function and its inverse. I issue F=plot ((2(x^3-2)),-4,0) G=plot(sign(0.5x+2.0)abs(0.5x+2.0)^(1/3),-4,0) F+G
Now 2(x^3-2) is the inverse of (0.5x+2)^(1/3) (I even checked with a well known alternative to sage).
The plots come out with the scale of 2(x^3-2) all wrong. They should (obviously) be reflections in y=x.
Any help much appreciated