Is there a bug in quiver?

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Manuel Cornejo Muñoz
Manuel Cornejo Muñoz le 27 Sep 2019
Dear Sirs
It seems to me that the plot should be wrong because there are two rows of vectors pointing down, when everithing is positive. Is there a bug in the quiver plot function?
Sincerely
Manuel Cornejo
quiver.jpg
  1 commentaire
Francesco Michelotti
Francesco Michelotti le 5 Oct 2019
I have a problem too with quiver. Everything works well if you invert u and v. I'm checking right now.

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the cyclist
the cyclist le 27 Sep 2019
Modifié(e) : the cyclist le 27 Sep 2019
It seems to me the problem is that you used matrix operations when you intended array operations. Try this instead:
u = y./sqrt(x.^2+y.^2);
v = x./sqrt(x.^2+y.^2);
test.png
See this documentation for details.
  1 commentaire
Manuel Cornejo Muñoz
Manuel Cornejo Muñoz le 1 Oct 2019
I am a beginner. Thank you very much

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