VecScale

Scales a vector.

Synopsis

#include "petscvec.h" 
int VecScale(const Scalar *alpha,Vec x)
Collective on Vec

Input Parameters

x - the vector
alpha - the scalar

Output Parameter

x -the scaled vector

Note

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

Keywords

vector, scale

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

Examples

src/vec/examples/tutorials/ex1.c
src/vec/examples/tutorials/ex1e.c
src/vec/examples/tutorials/ex1f.F
src/vec/examples/tutorials/ex1f90.F
src/snes/examples/tutorials/ex12.c
src/snes/examples/tutorials/ex15.c
src/ts/examples/tutorials/util2.c
src/dm/da/examples/tutorials/ex1.c