Chapter 7: Deviations from target bore size using tool 4 (with feedback control). Read across. 

   7.5   0    -2.5 -10    17.5   7.5  17.5   7.5   7.5  -2.5
  -2.5  12.5 -10.0   2.5  -7.5   5.0  -7.5   2.5  -5.0  -7.5
 -10    -5     7.5   7.5   7.5   7.5   7.5   5    17.5 -17.5
   7.5   5     7.5   0     7.5   0     7.5  -2.5   7.5   7.5
   7.5   5     7.5   7.5  -2.5   7.5   7.5   5     7.5   5       
   7.5  20     0    -2.5   0     0     0     2.5   5     0
  20     0     2.5  -5    -7.5 -12.5   0    10    -2.5  -7.5