Gradient of a vector
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I have 3 vectors X(i,j);Y(i,j) and Z(i,j).Z is a function of x and y numerically. I want to plot the gradient of z with respect to x and y. Can anyone suggest me how to find the gradient in the above case? Thanks, -Bhaskar
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Accepted Answer
Walter Roberson
on 28 Aug 2013
Is it a rectangular grid? [X, Y] = ndgrid(Xv, Yv) for some vector Xv, Yv ?
If so, then
gradient(Z, xv, yv)
2 Comments
Muthu Annamalai
on 30 Aug 2013
@walter I love the gradient + quiver plots. Reminds me of the swirling fields.. http://www.mathworks.com/help/matlab/ref/gradient.html?searchHighlight=gradient
More Answers (1)
Image Analyst
on 28 Aug 2013
Wouldn't it be diff(Z) ./ sqrt(diff(X).^2 + diff(Y).^2) or something pretty similar to that?
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