VecScale

Scales a vector.

Synopsis

#include "petscvec.h"   
PetscErrorCode VecScale(Vec x, PetscScalar alpha)

Logically Collective

Input Parameters

• x - the vector

• alpha - the scalar

Note

For a vector with n components, VecScale() computes x[i] = alpha * x[i], for i=1,…,n.

See Also

Vectors and Parallel Data, Vec, VecSet()

Level

intermediate

Location

src/vec/vec/interface/rvector.c

Examples

src/tao/unconstrained/tutorials/eptorsion2.c
src/mat/tutorials/ex9.c
src/tao/pde_constrained/tutorials/hyperbolic.c
src/tao/unconstrained/tutorials/burgers_spectral.c
src/tao/pde_constrained/tutorials/parabolic.c
src/tao/tutorials/ex4.c
src/tao/pde_constrained/tutorials/elliptic.c
src/tao/unconstrained/tutorials/eptorsion3.c
src/tao/constrained/tutorials/tomographyADMM.c
src/tao/unconstrained/tutorials/eptorsion2f.F90

Implementations

VecScale_Nest() in src/vec/vec/impls/nest/vecnest.c
VecScale_Seq() in src/vec/vec/impls/seq/bvec1.c
VecScale_SeqKokkos() in src/vec/vec/impls/seq/kokkos/veckok.kokkos.cxx
VecScale_SeqViennaCL() in src/vec/vec/impls/seq/seqviennacl/vecviennacl.cxx

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