slepc-main 2024-11-22
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BVNormVec

Computes the norm of a given vector.

Synopsis

#include "slepcbv.h" 
PetscErrorCode BVNormVec(BV bv,Vec v,NormType type,PetscReal *val)
Collective

Input Parameters

bv  - basis vectors
v  - the vector
type  - the norm type

Output Parameter

val  - the norm

Notes

This is the analogue of BVNormColumn() but for a vector that is not in the BV. If a non-standard inner product has been specified with BVSetMatrix(), then the returned value is sqrt(v'*B*v), where B is the inner product matrix (argument 'type' is ignored). Otherwise, VecNorm() is called.

See Also

BVNorm(), BVNormColumn(), BVSetMatrix()

Level

developer

Location

src/sys/classes/bv/interface/bvglobal.c

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