nag_ode_ivp_adams_zero_simple (d02cjc) Example Program Results

Case 1: intermediate output, root-finding

  Calculation with tol =    1.0e-04

     X         Y(1)         Y(2)         Y(3)
    0.00      0.50000      0.50000      0.62832
(User-supplied callback fcn, first invocation.)
(User-supplied callback g, first invocation.)
    2.00      1.54931      0.40548      0.30662
    4.00      1.74229      0.37433     -0.12890
    6.00      1.00554      0.41731     -0.55068

  Root of Y(1) = 0.0 at   7.288

  Solution is  -0.00000   0.47486  -0.76011

  Calculation with tol =    1.0e-05

     X         Y(1)         Y(2)         Y(3)
    0.00      0.50000      0.50000      0.62832
    2.00      1.54933      0.40548      0.30662
    4.00      1.74232      0.37433     -0.12891
    6.00      1.00552      0.41731     -0.55069

  Root of Y(1) = 0.0 at   7.288

  Solution is  -0.00000   0.47486  -0.76010


Case 2: no intermediate output, root-finding

  Calculation with tol =    1.0e-04

  Root of Y(1) = 0.0 at   7.288

  Solution is  -0.00000   0.47486  -0.76011

  Calculation with tol =    1.0e-05

  Root of Y(1) = 0.0 at   7.288

  Solution is  -0.00000   0.47486  -0.76010


Case 3: intermediate output, no root-finding

  Calculation with tol =    1.0e-04

     X         Y(1)         Y(2)         Y(3)
    0.00      0.50000      0.50000      0.62832
    2.00      1.54931      0.40548      0.30662
    4.00      1.74229      0.37433     -0.12890
    6.00      1.00554      0.41731     -0.55068
    8.00     -0.74589      0.51299     -0.85371
   10.00     -3.62813      0.63325     -1.05152

  Calculation with tol =    1.0e-05

     X         Y(1)         Y(2)         Y(3)
    0.00      0.50000      0.50000      0.62832
    2.00      1.54933      0.40548      0.30662
    4.00      1.74232      0.37433     -0.12891
    6.00      1.00552      0.41731     -0.55069
    8.00     -0.74601      0.51299     -0.85372
   10.00     -3.62829      0.63326     -1.05153


Case 4: no intermediate output, no root-finding ( integrate to xend)

  Calculation with tol =    1.0e-04

     X         Y(1)         Y(2)         Y(3)
    0.00      0.50000      0.50000      0.62832
   10.00     -3.62813      0.63325     -1.05152

  Calculation with tol =    1.0e-05

     X         Y(1)         Y(2)         Y(3)
    0.00      0.50000      0.50000      0.62832
   10.00     -3.62829      0.63326     -1.05153