How to extract two equal maximum values at different index

Hi guys,

How can I point out the different location of two maximum values

example A = [8,5,6,7,8]

If i type [max_A, index] = max(A), it will give me max = 8 and index = 1, but in this case the index must be 1 and 5.

Answer 1

[Birdman]

index=find(A==max(A))

This should give you the indexes.

Answer 2

[KSSV]

A = [8,5,6,7,8]

maxval = max(A);
lia = ismember(A,maxval);
idx = find(lia);