petsc-3.5.2 2014-09-08
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VecAXPY

Computes y = alpha x + y.

Synopsis

#include "petscvec.h"   
PetscErrorCode  VecAXPY(Vec y,PetscScalar alpha,Vec x)
Logically Collective on Vec

Input Parameters

alpha - the scalar
x, y - the vectors

Output Parameter

y -output vector

Notes: x and y MUST be different vectors

See Also

VecAYPX(), VecMAXPY(), VecWAXPY()

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

Examples

src/sys/threadcomm/examples/tutorials/ex4.c.html
src/vec/vec/examples/tutorials/ex1.c.html
src/vec/vec/examples/tutorials/ex1f.F.html
src/vec/vec/examples/tutorials/ex1f90.F.html
src/vec/vec/examples/tutorials/ex20f90.F90.html
src/mat/examples/tutorials/ex2.c.html
src/mat/examples/tutorials/ex9.c.html
src/ksp/ksp/examples/tutorials/ex1.c.html
src/ksp/ksp/examples/tutorials/ex2.c.html
src/ksp/ksp/examples/tutorials/ex3.c.html
src/ksp/ksp/examples/tutorials/ex5.c.html