MATLAB: To find the location of maximum number

arraymatri

I have a array
a= [1 2 5 7 7 5 3]
I want to get the location of the maximum number(for this example =7)
I use this code
[x,y]=max(t1)
x=
    7
    
 y=
     4
the code only shows one location. What can I change in the code two get 2 location which is 4 and 5 instead of 4?
     y =
         4
         5

Best Answer

Use the find (link) funciton: 
a= [1 2 5 7 7 5 3];
allmaxidx = find(a == max(a(:)))
producing: 
allmaxidx =
     4     5
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