0 votes

hello, I have a matrix that has many elements and I would like to know if I have a specific element on it All my variables are symbolic at this point. I already used : [i,j] = find( x==q^2) the output: i =
[]
j =
[]
so whats this means? I Have it somewhere or not?

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Azzi Abdelmalek
Azzi Abdelmalek le 8 Juil 2015
Modifié(e) : Azzi Abdelmalek le 8 Juil 2015

2 votes

syms q
x=[2*q q^2 5*q]
[i,j] = find(x==q^2)
The result is
i =
1
j =
2

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bio lim
bio lim le 8 Juil 2015
Modifié(e) : bio lim le 8 Juil 2015

1 vote

It means your matrix 'x' does not have an element that is equal to q^2.

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