NAG Library Manual, Mark 27.3
Interfaces:  FL   CL   CPP   AD 

NAG AD Library Introduction
Example description

F03BF_T1W_F C++ Header Example Program Results


   A
            1          2          3          4
 1      6.0000
 2      7.0000    11.0000
 3      6.0000     8.0000    11.0000
 4      5.0000     7.0000     9.0000    11.0000

   Array A after factorization
            1          2          3          4
 1      2.4495
 2      2.8577     1.6833
 3      2.4495     0.5941     2.1557
 4      2.0412     0.6931     1.6645     1.8927

 d = 0.0690918 id = 12

 value of determinant = 283


 Derivatives calculated: First order tangents
 Computational mode    : algorithmic

 Derivatives of d w.r.t to A:

            d(d)/da(i,j)
         1       2       3       4
 1   0.0500
 2  -0.0513  0.0266
 3  -0.0205 -0.0063  0.0264
 4   0.0039 -0.0054 -0.0298  0.0193