e0634.m

来自「《MATLAB 7.X程序设计》-王建卫-源代码及习题答案」· M 代码 · 共 6 行

x=0:0.1:2*pi;[x,y]=meshgrid(x);z=sin(y).*cos(x);
[I,J]=find(z>0.35);
for ii=1:length(I)
    z(I(ii),J(ii))=NaN;
end
surf(x,y,z)