solprop.stepper#

The integrators, Runge-Kutta tableaux, the step controller and step schedules.

Backend-agnostic scalar logic of the solver (docs/dev/stepper.md).

Modules

controller

Step-size control: the error-norm scaling and the PI controller.

low_storage

The low-storage interaction-picture Runge-Kutta march as a run's integrator (SEP 24).

multistep

Low-call Adams integrators: the method specification and its variable-step algebra.

runge_kutta

The interaction-picture Runge-Kutta march as a run's integrator.

schedule

Fixed step schedules: discover, calibrate, replay, and step landing.

tableau

Explicit Runge-Kutta tableaux with embedded error estimates.