gusucode.com > 《精通matlab 7》包括配套光盘 > 配套光盘里的程序附件/Ex-24/Ex2411.m
%例24-11 三维向量场图 %Ex24-11 quiver3 clear close all [X,Y]=meshgrid(-3:0.4:3); Z=-3*X.^2-Y.^2; [U,V,W]=surfnorm(X,Y,Z); quiver3(X,Y,Z,U,V,W,0.2) hold on surf(X,Y,Z)