TSARKIMEXRegister#
register a TSARKIMEX
scheme by providing the entries in the Butcher tableau and optionally embedded approximations and interpolation
Synopsis#
#include "petscts.h"
PetscErrorCode TSARKIMEXRegister(TSARKIMEXType name, PetscInt order, PetscInt s, const PetscReal At[], const PetscReal bt[], const PetscReal ct[], const PetscReal A[], const PetscReal b[], const PetscReal c[], const PetscReal bembedt[], const PetscReal bembed[], PetscInt pinterp, const PetscReal binterpt[], const PetscReal binterp[])
Logically Collective
Input Parameters#
name - identifier for method
order - approximation order of method
s - number of stages, this is the dimension of the matrices below
At - Butcher table of stage coefficients for stiff part (dimension s*s, row-major)
bt - Butcher table for completing the stiff part of the step (dimension s; NULL to use the last row of At)
ct - Abscissa of each stiff stage (dimension s, NULL to use row sums of At)
A - Non-stiff stage coefficients (dimension s*s, row-major)
b - Non-stiff step completion table (dimension s; NULL to use last row of At)
c - Non-stiff abscissa (dimension s; NULL to use row sums of A)
bembedt - Stiff part of completion table for embedded method (dimension s; NULL if not available)
bembed - Non-stiff part of completion table for embedded method (dimension s; NULL to use bembedt if provided)
pinterp - Order of the interpolation scheme, equal to the number of columns of binterpt and binterp
binterpt - Coefficients of the interpolation formula for the stiff part (dimension s*pinterp)
binterp - Coefficients of the interpolation formula for the non-stiff part (dimension s*pinterp; NULL to reuse binterpt)
Note#
Several TSARKIMEX
methods are provided, this function is only needed to create new methods.
See Also#
Level#
advanced
Location#
Examples#
src/ts/tutorials/ex16.c
src/ts/tutorials/ex19.c
Index of all TS routines
Table of Contents for all manual pages
Index of all manual pages