How to find the index in array?

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Meshooo
Meshooo 2016-8-3
评论： Meshooo 2016-8-4
Dear all,
I have the following array A = [0;0;0;0;0;0;1;1;;0;0;0;0];
I want to find the right and left index of the 1's? In this case
Left_A = 7
Right_A = 8
In another situations, A = [0;0;0;0;0;0;1;0;0;1;0;0;0];
Left_A = 7
Right_A = 10
Any idea how to do that? Thank you very much.
Meshoo

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Adam
Adam 2016-8-3
Left_A = find( A == 1, 1 );
Right_A = find( A == 1, 1, 'last' );

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