slepc-3.7.0 2016-05-16
FNRationalSetNumerator
Sets the parameters defining the numerator of the rational function.
Synopsis
#include "slepcfn.h"
PetscErrorCode FNRationalSetNumerator(FN fn,PetscInt np,PetscScalar *pcoeff)
Logically Collective on FN
Input Parameters
| fn | - the math function context
|
| np | - number of coefficients
|
| pcoeff | - coefficients (array of scalar values)
|
Notes
Let the rational function r(x) = p(x)/q(x), where p(x) and q(x) are polynomials.
This function provides the coefficients of the numerator p(x).
Hence, p(x) is of degree np-1.
If np is zero, then the numerator is assumed to be p(x)=1.
In polynomials, high order coefficients are stored in the first positions
of the array, e.g. to represent x^2-3 use {1,0,-3}.
See Also
FNRationalSetDenominator(), FNRationalGetNumerator()
Location: src/sys/classes/fn/impls/rational/fnrational.c
Index of all FN routines
Table of Contents for all manual pages
Index of all manual pages
Examples
src/nep/examples/tutorials/ex22.c.html
src/nep/examples/tutorials/ex27.c.html
src/nep/examples/nlevp/loaded_string.c.html
src/nep/examples/nlevp/gun.c.html