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 Parameters#

  • 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#

BVOrthonormalizeColumn(), BVBiorthogonalizeColumn()

Level#

advanced

Location#

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

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