LAPACK  3.9.0
LAPACK: Linear Algebra PACKage
Functions
double
LAPACK » General Band Matrix » Auxiliary routines
Collaboration diagram for double:

Functions

double precision function dlangb (NORM, N, KL, KU, AB, LDAB, WORK)
 DLANGB returns the value of the 1-norm, Frobenius norm, infinity-norm, or the largest absolute value of any element of general band matrix. More...
 
subroutine dlaqgb (M, N, KL, KU, AB, LDAB, R, C, ROWCND, COLCND, AMAX, EQUED)
 DLAQGB scales a general band matrix, using row and column scaling factors computed by sgbequ. More...
 

Detailed Description

This is the group of double auxiliary functions for GB matrices

dlangb
double precision function dlangb(NORM, N, KL, KU, AB, LDAB, WORK)
DLANGB returns the value of the 1-norm, Frobenius norm, infinity-norm, or the largest absolute value ...
Definition: dlangb.f:126
disnan
logical function disnan(DIN)
DISNAN tests input for NaN.
Definition: disnan.f:61
lsame
logical function lsame(CA, CB)
LSAME
Definition: lsame.f:55
dlassq
subroutine dlassq(N, X, INCX, SCALE, SUMSQ)
DLASSQ updates a sum of squares represented in scaled form.
Definition: dlassq.f:105
dcombssq
subroutine dcombssq(V1, V2)
DCOMBSSQ adds two scaled sum of squares quantities.
Definition: dcombssq.f:62
dlamch
double precision function dlamch(CMACH)
DLAMCH
Definition: dlamch.f:70