I have been trying to plot two surfaces on a 3D graph using Mupad. The first is created by the function:
(x-1)^2 / 4 + (y+2)^2 / 9 + (z+1)^2 = 9
The Second surface I have no problems with apart from some scaling issues:
4(x-1)^2 + 4(y+2)^2 = 81
Additionally, I want to find the intersection of the two surfaces.
My problem here is with the first surface as I can't get it to work using any of the 'plot' functions i am familiar with.
can anyone help me please?
first one is not a function, it is an ellipsoid, so isolate z and define the two halves as +/- sqrt(whatever)