u0=linspace(0,2,100);
t0=linspace(0,20,200);
[u,t]=meshgrid(u0,t0);
x=u.*sin(t);
y=u.*cos(t);
z=t0./4;
plot3(x,y,z);
參數(shù)選擇有點(diǎn)不對
u0=linspace(0,2,100);
t0=linspace(0,20,200);
[u,t]=meshgrid(u0,t0);
x=u.*sin(t);
y=u.*cos(t);
z=t0./4;
plot3(x,y,z);
參數(shù)選擇有點(diǎn)不對