Example description

 F07NRF Example Program Results

 Details of factorization
                    1                 2                 3                 4
 1  (-0.3900,-0.7100)
 2  (-7.8600,-2.9600) (-2.8300,-0.0300)
 3  ( 0.5279,-0.3715) (-0.6078, 0.2811) ( 4.4079, 5.3991)
 4  ( 0.4426, 0.1936) (-0.4823, 0.0150) (-0.1071,-0.3157) (-2.0954,-2.2011)

 IPIV
           -3                -3                 3                 4