VecPointwiseMaxAbs — PETSc 3.25.2 documentation

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# VecPointwiseMaxAbs

Computes the component-wise maximum of the absolute values `w[i] = max(abs(x[i]), abs(y[i]))`.

## Synopsis

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

Logically Collective

## Input Parameters

- x - the first input vector

- y - the second input vector

## Output Parameter

- w - the result

## Notes

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

## See Also

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

## Level

advanced

## Location

src/vec/vec/interface/vector.c

## Implementations

VecPointwiseMaxAbs_Seq() in src/vec/vec/impls/seq/bvec2.c

Index of all Vec routines
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Index of all manual pages