OLD MATRIX:
   ROW 0:   4    3    2    1  
   ROW 1:   1    2    1    1  
   ROW 2:   4    1    3    4  
   ROW 3:   5    6    5    4  

*** DROPPING ROW 2 ***

NEW MATRIX:
   ROW 0:   4    3    2    1  
   ROW 1:   1    2    1    1  
   ROW 2:   5    6    5    4