v=
        0         0         0 
v=
        1         2         3 
u=
        1         2         3 
u=
        1         2         3 
w=
      999         2         3 
w+=v
     1998         4         6 
w/10
    199.8       0.4       0.6 
u+u
        2         4         6 
M=
        0         0         0 
        0         0         0 
        0         0         0 
M=
        0         1         2 
        1         2         3 
        2         3         4 
M/10
        0       0.1       0.2 
      0.1       0.2       0.3 
      0.2       0.3       0.4 
M+M
        0         2         4 
        2         4         6 
        4         6         8 
M*(M+M)*M
       60       108       156 
      108       192       276 
      156       276       396 
O=
        1         0         0 
        0         1         0 
        0         0         1