# VecAXPBY

Computes y = alpha x + beta y.

### Synopsis

    #include "petscvec.h"
    PetscErrorCode PETSCVEC_DLLEXPORT VecAXPBY(Vec y,PetscScalar alpha,PetscScalar beta,Vec x)

Collective on Vec

### Input Parameters

| alpha,beta | - the scalars
| x, y | - the vectors

### Output Parameter

y -output vector

### See Also

VecAYPX(), VecMAXPY(), VecWAXPY(), VecAXPY()

Level:intermediate
Location:src/vec/interface/vector.c
Index of all Vec routines
Table of Contents for all manual pages
Index of all manual pages