slepc-3.7.4 2017-05-17
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# SlepcVecNormalize

Normalizes a possibly complex vector by the 2-norm.

### Synopsis

    #include "slepcsys.h"
    PetscErrorCode SlepcVecNormalize(Vec xr,Vec xi,PetscBool iscomplex,PetscReal *norm)

Collective on Vec

### Input parameters

| xr | - the real part of the vector (overwritten on output)
| xi | - the imaginary part of the vector (not referenced if iscomplex is false)
| iscomplex | - a flag indicating if the vector is complex

### Output parameter

| norm | - the vector norm before normalization (can be set to NULL)

Location: src/sys/slepcutil.c
Index of all sys routines
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