LAPACKSupport Namespace Reference


Classes

class  ExcState
class  ExcMissing

Enumerations

enum  State {
  matrix, inverse_matrix, lu, eigenvalues,
  unusable = 0x8000
}
enum  Properties {
  general = 0, symmetric = 1, upper_triangle = 2, lower_triangle = 4,
  diagonal = 6, hessenberg = 8
}

Functions

const char * state_name (State s)

Variables

static const char V = 'V'
static const char T = 'T'
static const char N = 'N'
static const int zero = 0
static const int one = 1

Enumeration Type Documentation

Most LAPACK functions change the contents of the matrix applied to to something which is not a matrix anymore. Therefore, LAPACK matrix classes in deal.II have a state flag indicating what happened to them.

Author:
Guido Kanschat, 2005
Enumerator:
matrix  Contents is actually a matrix.
inverse_matrix  Contents is the inverse of a matrix.
lu  Contents is an LU decomposition.
eigenvalues  Eigenvalue vector is filled.
unusable  Contents is something useless.

A matrix can have certain features allowing for optimization, but hard to test. These are listed here.

Enumerator:
general  No special properties.
symmetric  Matrix is symmetric.
upper_triangle  Matrix is upper triangular.
lower_triangle  Matrix is lower triangular.
diagonal  Matrix is diagonal.
hessenberg  Matrix is in upper Hessenberg form.


Function Documentation

const char* LAPACKSupport::state_name ( State  s  )  [inline]

Function printing the name of a State.

References eigenvalues, inverse_matrix, lu, matrix, and unusable.


Variable Documentation

const char LAPACKSupport::V = 'V' [static]

Character constant.

const char LAPACKSupport::T = 'T' [static]

const char LAPACKSupport::N = 'N' [static]

const int LAPACKSupport::zero = 0 [static]

Integer constant.

const int LAPACKSupport::one = 1 [static]

Integer constant.


deal.II documentation generated on Sat Aug 15 16:52:41 2009 by doxygen 1.5.9