lsodar_with_disc.py

assimulo.examples.lsodar_with_disc.run_example(with_plots=True)

Example of the use of Euler’s method for a differential equation with a discontinuity (state event) and the need for an event iteration.

on return:

• exp_mod problem instance
• exp_sim solver instance

---

No initialization defined for the problem.
A discontinuity occured at t = 1.000000e+00.
Current switches: [False, True, True]
Event info: [array([0, 0, 1], dtype=int32), False]
Final Run Statistics: ODE with discontinuities and a function with consistency problem 

 Number of steps                       : 4
 Number of function evaluations        : 5
 Number of Jacobian evaluations        : 0
 Number of state function evaluations  : 14
 Number of state events                : 1

Solver options:

 Solver                  : LSODAR 
 Absolute tolerances     : [  1.00000000e-06   1.00000000e-06   1.00000000e-06]
 Relative tolerances     : 1e-06
 Starter                 : classical

No finalization defined for the problem.
Final Run Statistics: ODE with discontinuities and a function with consistency problem 

 Number of steps                       : 7
 Number of function evaluations        : 9
 Number of Jacobian evaluations        : 0
 Number of state function evaluations  : 108
 Number of state events                : 1

Solver options:

 Solver                  : LSODAR 
 Absolute tolerances     : [  1.00000000e-06   1.00000000e-06   1.00000000e-06]
 Relative tolerances     : 1e-06
 Starter                 : classical

Simulation interval    : 0.0 - 10.0 seconds.
Elapsed simulation time: 0.00675797462463 seconds.

Note

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