VecPow#

Replaces each component of a vector by \( x_i^p \)

Synopsis#

#include "petscvec.h"  
PetscErrorCode VecPow(Vec v, PetscScalar p)

Logically Collective

Input Parameters#

v - the vector
p - the exponent to use on each element

Note#

This handles negative values, Inf, and Nan in the expected IEEE floating pointing manner. For example, the square root of a negative real number is Nan and 1/0.0 is Inf.

Level#

intermediate

Location#

src/vec/vec/utils/projection.c

Examples#

src/tao/tutorials/ex4.c
src/tao/constrained/tutorials/tomographyADMM.c

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