MATLAB: Matlab find an element in matrix

findmatix

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?

Best Answer

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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