> with(linalg):
Warning, the protected names norm and trace have been redefined and
unprotected

> P:=matrix(2,2,[1,0,m*lambda^2,1]);

                             [    1        0]
                        P := [              ]
                             [        2     ]
                             [m lambda     1]

> F:=matrix(2,2,[1,1/(k+q*lambda),0,1]);

                            [          1      ]
                            [1    ------------]
                       F := [     k + q lambda]
                            [                 ]
                            [0         1      ]

> U:=multiply(P,F);

                      [                    1        ]
                      [    1          ------------  ]
                      [               k + q lambda  ]
                 U := [                             ]
                      [                      2      ]
                      [        2     m lambda       ]
                      [m lambda     ------------ + 1]
                      [             k + q lambda    ]

# b) Kehrt man die bertragungsrichtung um, so sind die inverse
# Punktmatrix und die inverse Feldmatrix zu benutzen:
> P_:=inverse(P);

                             [    1         0]
                       P_ := [               ]
                             [         2     ]
                             [-m lambda     1]

> F_:=inverse(F);

                           [            1      ]
                           [1    - ------------]
                     F_ := [       k + q lambda]
                           [                   ]
                           [0          1       ]

> U_:=multiply(F_,P_);

                    [         2                        ]
                    [ m lambda                  1      ]
                    [------------ + 1    - ------------]
              U_ := [k + q lambda          k + q lambda]
                    [                                  ]
                    [            2                     ]
                    [   -m lambda              1       ]

> 
> 
