9楼: Originally posted by onelovexsn at 2014-05-05 12:19:57
syms x y z
a=(0.5:0.1:1)
=meshgrid(1:0.5:3,1:0.5:4)
z=100/((2.8*a.+1)*(x+1)*y+2.65*y+1.35)
mesh(x,y,z);
hold on

这个a应该怎么处理呢？我单独赋值的时候倒是可以
设为变量的时候就错了...

function multi_mesh

clear all;clc
syms x y z
a=(0.5:0.1:1)
[x,y]=meshgrid(1:0.5:3,1:0.5:4);
for a=0.5:0.1:1
z=100./((2.8*a+1)*(x+1).*y+2.65*y+1.35);
figure(1)
mesh(x,y,z);
hold on
end
hold off

syms x y z
a=0.9
[x,y]=meshgrid(1:0.5:4)
z=100./((2.8*a+1)*(x+1).*y+2.65*y+1.35)
mesh(x,y,z);

3楼: Originally posted by 月只蓝 at 2014-05-04 20:27:22
点乘点除点幂的问题，已修改：

syms x y z
a=0.9
=meshgrid(1:0.5:4)
z=100./((2.8*a+1)*(x+1).*y+2.65*y+1.35)
mesh(x,y,z);


untitled.png
...