How to find the position of an element in a vector

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Cantor Set
Cantor Set 2019-9-6
回答： darova 2019-9-6
Hello,
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;
pos(i)=i;
i=i+1;
end
end
But the output is of the form
[1 0 0 4]

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采纳的回答

madhan ravi
madhan ravi 2019-9-6
find(x==2)

更多回答（1 个）

darova
darova 2019-9-6
Use find()

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