CODEWITHSUNDEEP
matlab
user1679198
user1679198

Reputation: 63

new to matlab, trying to plot a vector field using quiver

I'm trying to plot a simple vector field but I'm unsure of the syntax for quiver because it doesn't seem to be working. It's just displaying an empty plot. I think it has something to do with the ./ but it won't even run when I remove the period. Thanks

v = -5:0.1:5;
[x,y] = meshgrid(v);
u1=(2./x);
u2=(2.*y./(x.^2));
quiver(x,y,u1,u2);

Upvotes: 1

Views: 359

Answers (1)

Andras Deak -- Слава Україні
Andras Deak -- Слава Україні

Reputation: 35175

The problem is that your vector field is infinitely large at x=0, which messes with the auto-scaling of arrows. Try avoiding the coordinate axes, for instance by using v=linspace(-5,5,10);. By using an ever number of points on a symmetric domain, you ensure that x=0 and y=0 are never used.

Result using this v:

fixed

Upvotes: 2

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