question regarding quiver command

x = [1 1];
y = [1 2];
u = [1 2];
v = [1 3];
quiver(x,y,u,v)

This is my simple code.. I cant get what u & v tells..apart form this what the length of the arrow indicates? can someone tell me what this parameters indicate?

Answer 1

[Star Strider]

The x and y are the origins or ‘feathers’ of the arrow, and the u and v are the directions. Here, one arrow starts at (1,1) and goes in the direction (1,1), and the second starts at (1,2) and goes in the direction (2,3). The plot scales the length and other parameters, so see the documentation on quiver for that.

It is easier to see if you make the axes equal:

quiver(x,y,u,v)
axis equal