slepc-3.7.4 2017-05-17
   
BVDotColumn
Computes multiple dot products of a column against all the previous columns of a BV. 
Synopsis
#include "slepcbv.h" 
PetscErrorCode BVDotColumn(BV X,PetscInt j,PetscScalar *m)
Collective on BV
Input Parameters
|  | X | - basis vectors | 
|  | j | - the column index | 
Output Parameter
|  | m | - an array where the result must be placed | 
Notes
This operation is equivalent to BVDotVec() but it uses column j of X
rather than taking a Vec as an argument. The number of active columns of
X is set to j before the computation, and restored afterwards.
If X has leading columns specified, then these columns do not participate
in the computation. Therefore, the length of array m must be equal to j
minus the number of leading columns.
See Also
 BVDot(), BVDotVec(), 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