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I want to plot the vector field on F=x i+ j

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I want to plot the vector field on
$\vec F=x\cap i+\cap j$
Invalid use of operator.

Error in connector.internal.fevalMatlab

Error in connector.internal.fevalJSON
Also how to plot the vector field of F=2*i+j?
How to do that
[x,y] = meshgrid(-3:.15:3,-3:.15:3);
Fx = x;
Fy = 1;
figure;
quiver(x,y,Fx,Fy,'k','linewidth',1)

Accepted Answer

Alan Stevens
Alan Stevens on 12 Jun 2023
Edited: Alan Stevens on 12 Jun 2023
Do you mean like this?
[x,y] = meshgrid(-3:.15:3,-3:.15:3);
Fx = x;
Fy = ones(size(y)); %%%%%%%%%%%
figure;
quiver(x,y,Fx,Fy,'k','linewidth',1)
For 2*i + j juat make Fx = 2*ones(size(x)).

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