how to reduce 2d array
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        Published on 2010-03-08T01:59:15Z
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            2010/03/08
            2:12 UTC
        
        
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I have a 2d array, let's say like this :
2   0   8   9
3   0  -1  20
13  12  17  18
1   2   3   4
2   0   7   9
How to create an array reduced by let's say 2nd row and third column?
2   0    9
13  12   18
1   2    4
2   0    9
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