petsc-3.7.1 2016-05-15
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# TSARKIMEXRegister

register an ARK IMEX 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[])

Not Collective, but the same schemes should be registered on all processes on which they will be used Many br

### Input Parameters

| name | - identifier for method Many br
| order | - approximation order of method Many br
| s | - number of stages, this is the dimension of the matrices below Many br
| At | - Butcher table of stage coefficients for stiff part (dimension s*s, row-major) Many br
| bt | - Butcher table for completing the stiff part of the step (dimension s; NULL to use the last row of At) Many br
| ct | - Abscissa of each stiff stage (dimension s, NULL to use row sums of At) Many br
| A | - Non-stiff stage coefficients (dimension s*s, row-major) Many br
| b | - Non-stiff step completion table (dimension s; NULL to use last row of At) Many br
| c | - Non-stiff abscissa (dimension s; NULL to use row sums of A) Many br
| bembedt | - Stiff part of completion table for embedded method (dimension s; NULL if not available) Many br
| bembed | - Non-stiff part of completion table for embedded method (dimension s; NULL to use bembedt if provided) Many br
| pinterp | - Order of the interpolation scheme, equal to the number of columns of binterpt and binterp Many br
| binterpt | - Coefficients of the interpolation formula for the stiff part (dimension s*pinterp) Many br
| binterp | - Coefficients of the interpolation formula for the non-stiff part (dimension s*pinterp; NULL to reuse binterpt) Many br

### Notes

Several ARK IMEX methods are provided, this function is only needed to create new methods. Many br

Many br

### Keywords

TS, register

### See Also

TSARKIMEX

Level:advanced
Location:src/ts/impls/arkimex/arkimex.c
Index of all TS routines
Table of Contents for all manual pages
Index of all manual pages

### Examples

src/ts/examples/tutorials/ex16.c.html
src/ts/examples/tutorials/ex19.c.html
src/ts/examples/tutorials/ex20.c.html