Finding non-zero 2-D array

If I have following type of 2-D array which can have entire row of zero's

1 3 7

3 6 9

0 0 0

2 3 8

I want following output array:

1 3 7

3 6 9

2 3 8

Can someone please help?

Answer 1

[Fangjun Jiang]

a=[1    3    7; 3    6    9; 0    0    0;2    3    8];
b=a(~all(a==0,2),:);

[Ajinkya Bankar]

Thank you very much.