单叶双曲面MATLAB编程,在matlab中画函数(x^2+y^2)/9-z^2/4=1的旋转单叶双曲面
答:>>[x,y]=meshgrid(-10:0.1:10);z=2*sqrt((x.^2+y.^2)/9-1);z((x.^2+y.^2)/9-1答:-1.5:0.1:1.5;y=-1.5:0.1:1.5;[X,Y]=meshgrid(x,y);Z=0.5*(X.^2/a-Y.^2/b);surf(X,Y,Z);title('双曲抛物面');椭球面:theta=0:0.1:2*pi;phi=th