NAG Library Manual, Mark 28.4
Interfaces:  FL   CL   CPP   AD 

NAG FL Interface Introduction
Example description

 E04FGF Example Program Results

 
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    E04F(F|G), Derivative-free solver for nonlinear least squares functions
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 Begin of Options
     Print File                    =                   6     * d
     Print Level                   =                   2     * d
     Print Options                 =                 Yes     * d
     Print Solution                =                 All     * U
     Monitoring File               =                  -1     * d
     Monitoring Level              =                   4     * d
     Dfo Print Frequency           =                   1     * d
     Dfo Monitor Frequency         =                   0     * d
 
     Infinite Bound Size           =         1.00000E+20     * d
     Stats Time                    =                  No     * d
     Time Limit                    =         1.00000E+06     * d
 
     Dfo Initial Interp Points     =          Coordinate     * d
     Dfo Max Objective Calls       =                 500     * d
     Dfo Max Soft Restarts         =                   5     * d
     Dfo Max Unsucc Soft Restarts  =                   3     * d
     Dfo Maximum Slow Steps        =                  20     * d
     Dfo Noise Level               =         0.00000E+00     * d
     Dfo Noisy Problem             =                  No     * d
     Dfo Number Initial Points     =                   0     * d
     Dfo Number Interp Points      =                   0     * d
     Dfo Number Soft Restarts Pts  =                   3     * d
     Dfo Random Seed               =                  -1     * d
     Dfo Starting Trust Region     =         1.00000E-01     * d
     Dfo Trust Region Slow Tol     =         1.02648E-04     * d
     Dfo Trust Region Tolerance    =         5.00000E-06     * U
     Dfo Version                   =              Latest     * d
     Dfls Small Residuals Tol      =         1.08158E-12     * d
 End of Options
 
 Problem Statistics
   No of variables                  2
     free (unconstrained)           0
     bounded                        2
   Objective function    LeastSquares
     No of residuals                2
 
  ----------------------------------------
   step |    obj        rho    |    nf   |
  ----------------------------------------
      1 |  4.02E+00  1.00E-01  |     4   |
      2 |  3.66E+00  1.00E-01  |     5   |
      3 |  3.48E+00  1.00E-01  |     6   |
      4 |  2.32E+00  1.00E-01  |     9   |
      5 |  1.94E+00  1.00E-01  |    10   |
      6 |  1.63E+00  1.00E-01  |    12   |
      7 |  9.65E-01  1.00E-01  |    14   |
      8 |  7.29E-01  1.00E-01  |    16   |
      9 |  4.77E-01  1.00E-01  |    19   |
     10 |  1.29E-01  1.00E-01  |    21   |
     11 |  5.70E-02  1.00E-01  |    23   |
     12 |  2.21E-04  1.00E-01  |    25   |
     13 |  1.28E-04  1.00E-02  |    26   |
     14 |  1.36E-08  1.00E-03  |    28   |
     15 |  1.03E-23  5.00E-06  |    32   |
  ----------------------------------------
  Status: Converged, small residuals
 
  Value of the objective                    1.03447E-23
  Number of objective function evaluations           32
  Number of steps                                    15
 
 
 Primal variables:
   idx   Lower bound       Value       Upper bound
     1  -1.50000E+00    1.00000E+00    2.00000E+00
     2  -2.00000E+00    1.00000E+00         inf