slepc-3.19.2 2023-09-05
   
VecCheckOrthonormality
Checks (or prints) the level of (bi-)orthonormality of a set of vectors. 
Synopsis
#include "slepcvec.h" 
PetscErrorCode VecCheckOrthonormality(Vec V[],PetscInt nv,Vec W[],PetscInt nw,Mat B,PetscViewer viewer,PetscReal *lev)
Collective
Input Parameters
|  | V | - a set of vectors | 
|  | nv | - number of V vectors | 
|  | W | - an alternative set of vectors (optional) | 
|  | nw | - number of W vectors | 
|  | B | - matrix defining the inner product (optional) | 
|  | viewer | - optional visualization context | 
Output Parameter
|  | lev | - level of orthogonality (optional) | 
Notes
This function is equivalent to VecCheckOrthonormality(), but in addition it checks
that the diagonal of W'*V (or W'*B*V) is equal to all ones.
See Also
 VecCheckOrthogonality()
Level
developer
Location
src/sys/vec/vecutil.c
Examples
src/eps/tutorials/ex47.c
src/svd/tutorials/ex45.c
src/svd/tutorials/ex52.c
src/svd/tutorials/ex53.c
Index of all sys routines
Table of Contents for all manual pages
Index of all manual pages