petsc-3.9.4 2018-09-11
VecMaxPointwiseDivide
Computes the maximum of the componentwise division max = max_i abs(x_i/y_i).
Synopsis
#include "petscvec.h"
PetscErrorCode VecMaxPointwiseDivide(Vec x,Vec y,PetscReal *max)
Logically Collective on Vec
Input Parameters
x, y -the vectors
Output Parameter
max -the result
Notes: x and y may be the same vector
if a particular y_i is zero, it is treated as 1 in the above formula
See Also
VecPointwiseDivide(), VecPointwiseMult(), VecPointwiseMax(), VecPointwiseMin(), VecPointwiseMaxAbs()
Level
advanced
Location
src/vec/vec/interface/rvector.c
Implementations
VecMaxPointwiseDivide_Nest in src/vec/vec/impls/nest/vecnest.c
VecMaxPointwiseDivide_Seq in src/vec/vec/impls/seq/dvec2.c
Index of all Vec routines
Table of Contents for all manual pages
Index of all manual pages