Hello, I want to ask how to plot the level curves of this function. I have tried with fimplicit and with fcontour but I can't plot it because of its discontinuities. If anyone knows it will be very helpful because it is for my composite structures course.
function [z] = THb(x1,x2)
E1 = 100*10^3;E2 = 7*10^3;nu12=.3;F1t=1000;F2t=45;F1c=600;F2c=150;F6=65;
z=A*x1.^2 + B*x2.^2 +C*x1.*x2;