listing only the first index

I have a matrix

A= [ 1 3 5 7 33 23 44 55 55]

I want to find the index of the maximum value, so I used this line

A= find( A == max(A(:)))

However this displays both indices (8 & 9) since they both have a value of 55, however I want it to only list the first index, 8. How would I go about that?

Thanks

Answer 1

[Hikaru]

The function max alone is sufficient, you don't have to use find for this sort of problem.

[Y,I] = max(A)

The variable I will return the index of the first maximum value.