This manual relates to an old release of the Library.
The documentation for the current release is also available on this site.
Example description
 E04YAF Example Program Results

 The test point is
    0.19000  -1.34000   0.88000

 1st derivatives are consistent with residual values

 At the test point, LSQFUN gives

       Residuals                   1st derivatives
      -2.029E-03      1.000E+00     -4.061E-02     -2.707E-03
      -1.076E-01      1.000E+00     -9.689E-02     -1.384E-02
      -2.330E-01      1.000E+00     -1.785E-01     -4.120E-02
      -3.785E-01      1.000E+00     -3.043E-01     -1.014E-01
      -5.836E-01      1.000E+00     -5.144E-01     -2.338E-01
      -8.689E-01      1.000E+00     -9.100E-01     -5.460E-01
      -1.346E+00      1.000E+00     -1.810E+00     -1.408E+00
      -2.374E+00      1.000E+00     -4.726E+00     -4.726E+00
      -2.975E+00      1.000E+00     -6.076E+00     -6.076E+00
      -4.013E+00      1.000E+00     -7.876E+00     -7.876E+00
      -5.323E+00      1.000E+00     -1.040E+01     -1.040E+01
      -7.292E+00      1.000E+00     -1.418E+01     -1.418E+01
      -1.057E+01      1.000E+00     -2.048E+01     -2.048E+01
      -1.713E+01      1.000E+00     -3.308E+01     -3.308E+01
      -3.681E+01      1.000E+00     -7.089E+01     -7.089E+01