sl.4

sl.4

  

-->x1=[-1:0.01:1]

-->x2=[-2:0.02:2]

-->function val=heart(x1,x2)

-->val=(1.2*x2-sqrt(abs(x1))).^2+x1.^2-1;

-->endfunction;

-->contour2d(x1,x2,heart,[0 0]);