slepc-3.7.2 2016-07-19
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DSNormalize

Normalize a column or all the columns of a matrix. Considers the case when the columns represent the real and the imaginary part of a vector.

Synopsis

#include "slepcds.h" 
PetscErrorCode DSNormalize(DS ds,DSMatType mat,PetscInt col)
Logically Collective on DS

Input Parameter

ds  - the direct solver context
mat  - the matrix to be modified
col  - the column to normalize or -1 to normalize all of them

Notes

The columns are normalized with respect to the 2-norm.

If col and col+1 (or col-1 and col) represent the real and the imaginary part of a vector, both columns are scaled.

See Also

DSMatType

Location: src/sys/classes/ds/interface/dsops.c
Index of all DS routines
Table of Contents for all manual pages
Index of all manual pages