PETSc version 3.15.5
PetscDTReconstructPoly
create matrix representing polynomial reconstruction using cell intervals and evaluation at target intervals 
Synopsis
#include "petscdt.h" 
PetscErrorCode PetscDTReconstructPoly(PetscInt degree,PetscInt nsource,const PetscReal *sourcex,PetscInt ntarget,const PetscReal *targetx,PetscReal *R)
Not Collective
Input Arguments
|  | degree | - degree of reconstruction polynomial | 
|  | nsource | - number of source intervals | 
|  | sourcex | - sorted coordinates of source cell boundaries (length nsource+1) | 
|  | ntarget | - number of target intervals | 
|  | targetx | - sorted coordinates of target cell boundaries (length ntarget+1) | 
Output Arguments
|  | R | - reconstruction matrix, utarget = sum_s R[t*nsource+s] * usource[s] | 
See Also
 PetscDTLegendreEval()
Level
advanced
Location
src/dm/dt/interface/dt.c
Index of all DT routines
Table of Contents for all manual pages
Index of all manual pages