slepc-3.7.4 2017-05-17
   
BVNormColumn
Computes the vector norm of a selected column. 
Synopsis
#include "slepcbv.h" 
PetscErrorCode BVNormColumn(BV bv,PetscInt j,NormType type,PetscReal *val)
Collective on BV
Input Parameters
|  | bv | - basis vectors | 
|  | j | - column number to be used | 
|  | type | - the norm type | 
Output Parameter
Notes
The norm of V[j] is computed (NORM_1, NORM_2, or NORM_INFINITY).
If a non-standard inner product has been specified with BVSetMatrix(),
then the returned value is sqrt(V[j]'*B*V[j]),
where B is the inner product matrix (argument 'type' is ignored).
See Also
 BVNorm(), BVNormVec(), BVSetActiveColumns(), BVSetMatrix()
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