slepc-main 2024-12-17
FNEvaluateDerivative
Computes the value of the derivative f'(x) for a given x.
Synopsis
#include "slepcfn.h"
PetscErrorCode FNEvaluateDerivative(FN fn,PetscScalar x,PetscScalar *y)
Not Collective
Input Parameters
| fn | - the math function context
|
| x | - the value where the derivative must be evaluated
|
Output Parameter
Note
Scaling factors are taken into account, so the actual derivative evaluation will
return alpha*beta*f'(alpha*x).
See Also
FNEvaluateFunction()
Level
intermediate
Location
src/sys/classes/fn/interface/fnbasic.c
Index of all FN routines
Table of Contents for all manual pages
Index of all manual pages