作业帮Matlab 单叶双曲线 总是画不出图!x1=-10:0.2:10;y1=x1;[x,y]=meshgrid(x1,y1);a=1;b=1;c=1;z1=sqrt(c.^2*(x.^2/(a.^2)+y.^2/(b.^2)-1));z2=-sqrt(c.^2*(x.^2/(a.^2)+y.^2/(b.^2)-1));mesh(x,y,z1)hold on;mesh(x,y,z2)-------------------------------------
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![Matlab 单叶双曲线 总是画不出图!x1=-10:0.2:10;y1=x1;[x,y]=meshgrid(x1,y1);a=1;b=1;c=1;z1=sqrt(c.^2*(x.^2/(a.^2)+y.^2/(b.^2)-1));z2=-sqrt(c.^2*(x.^2/(a.^2)+y.^2/(b.^2)-1));mesh(x,y,z1)hold on;mesh(x,y,z2)-------------------------------------](/uploads/image/z/10903121-17-1.jpg?t=Matlab+%E5%8D%95%E5%8F%B6%E5%8F%8C%E6%9B%B2%E7%BA%BF+%E6%80%BB%E6%98%AF%E7%94%BB%E4%B8%8D%E5%87%BA%E5%9B%BE%21x1%3D-10%3A0.2%3A10%3By1%3Dx1%3B%5Bx%2Cy%5D%3Dmeshgrid%28x1%2Cy1%29%3Ba%3D1%3Bb%3D1%3Bc%3D1%3Bz1%3Dsqrt%28c.%5E2%2A%28x.%5E2%2F%28a.%5E2%29%2By.%5E2%2F%28b.%5E2%29-1%29%29%3Bz2%3D-sqrt%28c.%5E2%2A%28x.%5E2%2F%28a.%5E2%29%2By.%5E2%2F%28b.%5E2%29-1%29%29%3Bmesh%28x%2Cy%2Cz1%29hold+on%3Bmesh%28x%2Cy%2Cz2%29-------------------------------------)
Matlab 单叶双曲线 总是画不出图!x1=-10:0.2:10;y1=x1;[x,y]=meshgrid(x1,y1);a=1;b=1;c=1;z1=sqrt(c.^2*(x.^2/(a.^2)+y.^2/(b.^2)-1));z2=-sqrt(c.^2*(x.^2/(a.^2)+y.^2/(b.^2)-1));mesh(x,y,z1)hold on;mesh(x,y,z2)-------------------------------------
Matlab 单叶双曲线 总是画不出图!
x1=-10:0.2:10;
y1=x1;
[x,y]=meshgrid(x1,y1);
a=1;b=1;c=1;
z1=sqrt(c.^2*(x.^2/(a.^2)+y.^2/(b.^2)-1));
z2=-sqrt(c.^2*(x.^2/(a.^2)+y.^2/(b.^2)-1));
mesh(x,y,z1)
hold on;
mesh(x,y,z2)
---------------------------------------------------
系统红字：
Error using ==> surface
X,Y,Z,and C cannot be complex.
Error in ==> C:\MATLAB6p5p1\toolbox\matlab\graph3d\mesh.m
On line 93 ==> hh = surface(x,y,z,'FaceColor',fc,'EdgeColor','flat','FaceLighting','none','EdgeLighting','flat');
怎么回事……疯了!
Matlab 单叶双曲线 总是画不出图!x1=-10:0.2:10;y1=x1;[x,y]=meshgrid(x1,y1);a=1;b=1;c=1;z1=sqrt(c.^2*(x.^2/(a.^2)+y.^2/(b.^2)-1));z2=-sqrt(c.^2*(x.^2/(a.^2)+y.^2/(b.^2)-1));mesh(x,y,z1)hold on;mesh(x,y,z2)-------------------------------------
没有问题,可以出图：
clear all;clc;
x1=-10:0.5:10;
y1=x1;
[x,y]=meshgrid(x1,y1);
a=1;b=1;c=1;
z1=sqrt(c^2*(x.^2/a^2+y.^2/b^2-1));
z2=-sqrt(c^2*(x.^2/a^2+y.^2/b^2-1));
surf(x,y,z1);hold on;
surf(x,y,z2);