StepSizeFilter Type

Designates the filter method for calculation of the recommended step size of the next step.

See Table 1 in [Söderlind, Adaptive Time-Stepping and Computational Stability, 2003]

Record fields

Record Field Description

Elementary

Full Usage: Elementary

Field type: StepSizeFilter
Modifiers: static

Elementary controller (not recommended). Takes only the current relative error into account.

Field type: StepSizeFilter

H211b

Full Usage: H211b

Field type: StepSizeFilter
Modifiers: static

The H211b digital filter (b=4). Takes the current relative error, the previous relative error, and the current and previous step sizes into account

Field type: StepSizeFilter

PI_4_2

Full Usage: PI_4_2

Field type: StepSizeFilter
Modifiers: static

The PI4.2 digital filter. Takes the current relative error and the previous relative error into account.

Field type: StepSizeFilter

value__

Full Usage: value__

Field type: int
Modifiers: mutable

Field type: int