examp2_30.m

高等应用数学的问题的matlab求解

[x,y]=meshgrid(-1.5:.1:1.5,-2:.1:2);
z= 0.5457*exp(-0.75*y.^2-3.75*x.^2-1.5*x).*(x+y>1)+...
    0.7575*exp(-y.^2-6*x.^2).*((x+y>-1) & (x+y<=1))+...
    0.5457*exp(-0.75*y.^2-3.75*x.^2+1.5*x).*(x+y<=-1);
surf(x,y,z), set(gca,'xlim',[-1.5 1.5]); shading flat

view(80,10), set(gca,'xlim',[-1.5 1.5])