I do not like this

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Mariano on 17 Jul 2018
Answered: Mariano on 27 Jul 2018
>> [1 2].*[1;2] ans = 1 2 2 4
I prefer the error message!
  1 Comment
Rishabh Rathore
Rishabh Rathore on 27 Jul 2018
What you are getting is the matrix with all possible combinations of elements multiplied. The element wise multiplication gives that if you multiply a row and a column vectors element wise, please refer times.

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Answers (1)

Mariano on 27 Jul 2018
Thanks for your answer. I know what I am getting. It is the same I got before with kron when I wanted it. For me .* had always been a reliable shortcut for times, and at some moment this changed. Now .* is a shortcut for two different things. Before, I could relay on a.*b to give an error message whenever I had make some mistake and a was row while b was column. Now, the program creates a matrix and continues, with unexpected results. I know it is me who should be more careful with the dimensions of my vectors, but anyway, at some moment somebody has changed one of the characteristic features of good old Matlab, and I preferred the other way.
Maybe https://xkcd.com/1172/ is applicable to me in this situation ;)




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