VecPointwiseDivide — PETSc 3.23.0 documentation

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# VecPointwiseDivide

Computes the component-wise division `w[i] = x[i] / y[i]`.

## Synopsis

    #include "petscvec.h"
    PetscErrorCode VecPointwiseDivide(Vec w, Vec x, Vec y)

Logically Collective

## Input Parameters

- x - the numerator vector

- y - the denominator vector

## Output Parameter

- w - the result

## Note

Any subset of the `x`, `y`, and `w` may be the same vector.

## See Also

Vectors and Parallel Data, `Vec`, `VecPointwiseMult()`, `VecPointwiseMax()`, `VecPointwiseMin()`, `VecPointwiseMaxAbs()`, `VecMaxPointwiseDivide()`

## Level

advanced

## Location

src/vec/vec/interface/vector.c

## Examples

src/tao/pde_constrained/tutorials/elliptic.c
src/tao/pde_constrained/tutorials/parabolic.c
src/ksp/ksp/tutorials/ex72.c
src/tao/unconstrained/tutorials/spectraladjointassimilation.c
src/vec/vec/tutorials/ex1.c
src/snes/tutorials/ex13.c
src/tao/unconstrained/tutorials/burgers_spectral.c
src/tao/tutorials/ex4.c
src/ts/tutorials/ex50.c
src/tao/constrained/tutorials/tomographyADMM.c

## Implementations

VecPointwiseDivide_Nest() in src/vec/vec/impls/nest/vecnest.c
VecPointwiseDivide_Seq() in src/vec/vec/impls/seq/bvec2.c
VecPointwiseDivide_SeqKokkos() in src/vec/vec/impls/seq/kokkos/veckok.kokkos.cxx
VecPointwiseDivide_SeqViennaCL() in src/vec/vec/impls/seq/seqviennacl/vecviennacl.cxx

Index of all Vec routines
Table of Contents for all manual pages
Index of all manual pages