www.gusucode.com > graphics 案例源码程序 matlab代码 > graphics/PlotVectorVelocitiesExample.m
%% Plot Vector Velocities % Use |quiver| to display an arrow at each data point in |x| and |y| such that the % arrow direction and length represent the corresponding values in |u| and % |v|. % Copyright 2015 The MathWorks, Inc. [x,y] = meshgrid(0:0.2:2,0:0.2:2); u = cos(x).*y; v = sin(x).*y; figure quiver(x,y,u,v)