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How to find the position of an element in a vector

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Cantor Set
Cantor Set on 6 Sep 2019
Answered: darova on 6 Sep 2019
Is there a function in matlab that takes a column vector of n rows and a number as an input and returns its position in the vector,
for example a vector x as given below, suppose I want to find the position of number 2 in x. I want the answer to be in the form of [ 1 4]
x=[2 3 4 2];
I thought of the following code
x=[2 3 4 2];
for i=1:4
if x(i)==2;
But the output is of the form
[1 0 0 4]

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