mm2408.m

来自「matlab7.0这本书的源代码」· M 代码 · 共 9 行

% mm2408.m

[x,y,z] = peaks; % default output of peaks
dx = x(1,2) - x(1,1); % spacing in x direction
dy = y(2,1) - y(1,1); % spacing in y direction
L = del2(z,dx,dy);
surf(x,y,z,abs(L))
shading interp
title('Figure 24.8: Discrete Laplacian Color')