Plotting Eigen vectors

I have a real symetric matrix A

>> A=[1 7 3;7 4 -5;3 -5 6];

I found its eigen vectors

>> [Evec,Eval]=eig(A);

I want to plot eigen vectors in 3D.

so that I have written like this

vlabs={'X ','Y ','Z '};
biplot(7*EVec(:,1:end),'varlabels',vlabs)

% I scaled to 7 look bigger vectors

Is this the write way? Is there any way to plot eigen vectors better?

[bym]

Your syntax biplot(7*Evec(:,1:end),'varlabels',vlabs) could just as easily be biplot(7*Evec,'varlabels',vlabs)

[Jan]

What is "better"?

[Raviteja]

Tell me finally, is my code to draw eigen vectors is correct ?

Any other method ?

[KSSV]

I think it depends what for are the Eigenvalues. What Eigen value analysis it is?