www.gusucode.com > 《matlab图像处理与界面编程宝典》秦襄培 编著，每章的MATLAB源代码程序 > 第5章/代码5-22.txt

    
    x = (-2:.2:2); 
    y = (-1.5:.2:1.5)'; 
    [X,Y] = meshgrid(x, y); 
    F = X .* exp(-X.^2 - Y.^2);