petsc-3.11.4 2019-09-28
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
Examples
src/vec/vec/examples/tutorials/ex1.c.html
src/vec/vec/examples/tutorials/ex1f.F90.html
src/vec/vec/examples/tutorials/ex1f90.F90.html
src/vec/vec/examples/tutorials/ex20f90.F90.html
src/mat/examples/tutorials/ex2.c.html
src/mat/examples/tutorials/ex9.c.html
src/dm/impls/stag/examples/tutorials/ex1.c.html
src/dm/impls/stag/examples/tutorials/ex2.c.html
src/dm/impls/stag/examples/tutorials/ex3.c.html
src/dm/examples/tutorials/ex10.c.html
src/dm/examples/tutorials/ex15.c.html
Implementations
VecAXPY_Nest in src/vec/vec/impls/nest/vecnest.c
VecAXPY_Seq in src/vec/vec/impls/seq/bvec1.c
VecAXPY_SeqCUDA in src/vec/vec/impls/seq/seqcuda/veccuda2.cu
VecAXPY_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