BVBiorthonormalizeColumn#
Bi-orthonormalize a column of two BV objects.
Synopsis#
#include "slepcbv.h"
PetscErrorCode BVBiorthonormalizeColumn(BV V,BV W,PetscInt j,PetscReal *delta)
Collective
Input Parameters#
V - first basis vectors context
W - second basis vectors context
j - index of column to be bi-orthonormalized
Output Parameter#
delta - (optional) value used for normalization
Notes#
This function first bi-orthogonalizes vectors \(v_j\), \(w_j\) against \(W_{0:j-1}\), and \(V_{0:j-1}\), respectively. Then, it scales the vectors with \(1/\delta\), so that the resulting vectors satisfy \(w_j^*v_j = 1\).
See Also#
BV: Basis Vectors, BVOrthonormalizeColumn(), BVBiorthogonalizeColumn()
Level#
advanced
Location#
src/sys/classes/bv/interface/bvbiorthog.c
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