Filling Af....
A= Af --- > A =  
[[0,1,2]
 [10,11,12]]
 2* A= 
[[0,2,4]
 [20,22,24]]
  Af/2 =  
[[0,0,1]
 [5,5,6]]
2
  B= A/4 =  
[[0,0.5,1]
 [5,5.5,6]]