Can MATLAB divide two row vectors?

5 vues (au cours des 30 derniers jours)
AM
AM le 25 Nov 2013
Commenté : Stephen23 le 31 Mai 2022
Hi. I have a simple question. I inputted [3 3 3]/[4 5 6] in MATLAB and got 0.5844 (format short).
My question is how can MATLAB divide two row vectors?

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Réponse acceptée

Azzi Abdelmalek
Azzi Abdelmalek le 25 Nov 2013
Modifié(e) : Azzi Abdelmalek le 25 Nov 2013
a=[3 3 3]
b=[4 5 6]
a./b

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Luca Kaiser
Luca Kaiser le 31 Mai 2022
Hi can anyone explain what Matlab is doing to get the 0.5844?
Thanks!
  2 commentaires
Walter Roberson
Walter Roberson le 31 Mai 2022
[3 3 3]/[4 5 6] is [3 3 3]*pinv([4 5 6]) to within roundoff
Stephen23
Stephen23 le 31 Mai 2022
From the MRDIVIDE documentation: "If A is a rectangular m-by-n matrix with m ~= n, and B is a matrix with n columns, then x = B/A returns a least-squares solution of the system of equations x*A = B."
https://www.mathworks.com/help/matlab/ref/mrdivide.html

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