How to plot constant vector field: f(x,y)=2 ax + ay

x=-3:3;

>> y=-5:5;

>> [x,y]=meshgrid(x,y);

>> u=2;v=1;

>> quiver(x,y,u,v)

Error using quiver (line 44)

The size of X must match the size of U or the number of columns of U.

Answer 1

[VBBV]

x=-3:3;
y=-5:5;
[x,y]=meshgrid(x,y);
u=repmat(2,length(x),7);
v=repmat(1,length(x),7);
quiver(x,y,u,v)

[VBBV]

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