借助一个关于二元带求和的函数的画图。

图中a=2；x=-2:.2:2;

y=-2:.2:2;

[X,Y]=meshgrid(x,y);

t=[0:1:100];

Z=0.96./(pi.^3).*sum((1./((2.*n-1).^3))*cos((2.*n-1)*pi.*Y)*sin((2.*n-1).*pi.*X/2));

mesh(X,Y,Z)

这个代码总是提示错误，求高人解答

Answer 1

[hodef]

直接修改你的代码如下：

x=-2:.1:2;

t=-2:.1:2;

[X,T]=meshgrid(x,t);

n=reshape(0:1:100,1,1,[]);

Z = 0.96./(pi.^3).*sum(bsxfun(@times, 1./(2*n-1).^3, cos(bsxfun(@times, (2*n-1)*pi, T)).*sin(bsxfun(@times, (2*n-1)*pi, X/2))),3);

surf(X,T,Z)