errors with quiver!

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John Omoruyi
John Omoruyi 2022-6-19
评论： John Omoruyi 2022-6-19
Hello there,
...hopefully my intentions with the input below is understood. What exact changes should I consider with line 4 or 5? There's always an error issue here. Thanks, I'm new to this.
spacing = 0.2;
[X,Y] = meshgrid(-2:spacing:2);
Z = X.*exp(-X.^2 - Y.^2);
[DX,DY,DZ] = gradient(Z,spacing);
quiver(X,Y,Z,DX,DY,DZ)
hold on
contour3(X,Y,Z)
axis equal
hold off

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回答（1 个）

KSSV
KSSV 2022-6-19
Ran in:
spacing = 0.2;
[X,Y] = meshgrid(-2:spacing:2);
Z = X.*exp(-X.^2 - Y.^2);
[DX,DY] = gradient(Z);
quiver(X,Y,DX,DY)
hold on
contour(X,Y,Z)
axis equal
hold off
  1 个评论
John Omoruyi
John Omoruyi 2022-6-19
...thank u so much for replying.
I'm quite aware of this 2D solution, but actually more interested in the 3D implementation as I initially described. I'd be very greatful if you can help.

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