matlab 含变量的二元二次函数作图
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matlab 含变量的二元二次函数作图
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![matlab 含变量的二元二次函数作图](/uploads/image/z/8559938-2-8.jpg?t=matlab+%E5%90%AB%E5%8F%98%E9%87%8F%E7%9A%84%E4%BA%8C%E5%85%83%E4%BA%8C%E6%AC%A1%E5%87%BD%E6%95%B0%E4%BD%9C%E5%9B%BE)
clear;clc;close all
[x,y]=meshgrid(linspace(0,5));
t=1;
for a=[1 2 3]
for b=[0.2 0.4 0.8]
subplot(3,3,t);
z=-0.5*x^2+6*x-b*x-0.5*y^2+4*y-4-a*y;
mesh(x,y,z);
t=t+1;
end
end
![](http://img.wesiedu.com/upload/4/af/4af745582fd173fe2b1e3d1987c339e0.jpg)
[x,y]=meshgrid(linspace(0,5));
t=1;
for a=[1 2 3]
for b=[0.2 0.4 0.8]
subplot(3,3,t);
z=-0.5*x^2+6*x-b*x-0.5*y^2+4*y-4-a*y;
mesh(x,y,z);
t=t+1;
end
end
![](http://img.wesiedu.com/upload/4/af/4af745582fd173fe2b1e3d1987c339e0.jpg)