For ,
Interchanged, skewed loop:
for k := to do
S: A[k ,k -k ] := A[k -1,k -k ]+A[k ,k -k -1]
for k := to do
S: A[k ,k -k ] := A[k -1,k -k ]+A[k ,k -k -1]
for k := 0 to 8 do
That is,
for k := 0 to do