ida_basic_backward.py

assimulo.examples.ida_basic_backward.run_example(with_plots=True)[source]

The same as example cvode_basic.py but now integrated backwards in time.

on return:

  • exp_mod problem instance
  • exp_sim solver instance

Final Run Statistics: IDA Example: $\dot y + y = 0$ (reverse time) 

 Number of steps                                 : 104
 Number of function evaluations                  : 124
 Number of Jacobian evaluations                  : 17
 Number of function eval. due to Jacobian eval.  : 17
 Number of error test failures                   : 0
 Number of nonlinear iterations                  : 124
 Number of nonlinear convergence failures        : 0

Solver options:

 Solver                       : IDA (BDF)
 Maximal order                : 5
 Suppressed algebr. variables : False
 Tolerances (absolute)        : 1e-08
 Tolerances (relative)        : 1e-08

Simulation interval    : 5.0 - 0.0 seconds.
Elapsed simulation time: 0.0276439189911 seconds.
_images/ida_basic_backward.png

Note

Press [source] (to the top right) to view the example.