bundles / scipy latest / scipy / integrate / _ivp / radau / predict_factor

function

`scipy.integrate._ivp.radau:predict_factor`

source: /scipy/integrate/_ivp/radau.py :139

Signature

def predict_factor ( h_abs , h_abs_old , error_norm , error_norm_old )

Summary

Predict by which factor to increase/decrease the step size.

Extended Summary

The algorithm is described in ^[1].

Parameters

h_abs, h_abs_old : float: Current and previous values of the step size, h_abs_old can be None (see Notes).
error_norm, error_norm_old : float: Current and previous values of the error norm, error_norm_old can be None (see Notes).

Returns

factor : float: Predicted factor.

Notes

If h_abs_old and error_norm_old are both not None then a two-step algorithm is used, otherwise a one-step algorithm is used.

Aliases

scipy.integrate._ivp.radau.predict_factor