How to retrieve only positive values with indexing in matrix

I have a matrix like this

A=[ -1 -1 8 7 -1 11 4 3 -1 -1 6] i want to see only positive values with indexing.

output will be like this

B=[ 3 8

4 7

6 11

7 4

8 3

11 6]

Answer 1

[Alex Mcaulley]

ind = find(A>0);
B = [ind',A(ind)']
A =

     3     8
     4     7
     6    11
     7     4
     8     3
    11     6

[SANJOY MONDAL]

thank you sir