LAPACK  3.9.0
LAPACK: Linear Algebra PACKage
Functions
complex16
LAPACK » Symmetric Matrix » Auxiliary routines
Collaboration diagram for complex16:

Functions

subroutine zlaesy (A, B, C, RT1, RT2, EVSCAL, CS1, SN1)
 ZLAESY computes the eigenvalues and eigenvectors of a 2-by-2 complex symmetric matrix. More...
 
double precision function zlansy (NORM, UPLO, N, A, LDA, WORK)
 ZLANSY returns the value of the 1-norm, or the Frobenius norm, or the infinity norm, or the element of largest absolute value of a complex symmetric matrix. More...
 
subroutine zlaqsy (UPLO, N, A, LDA, S, SCOND, AMAX, EQUED)
 ZLAQSY scales a symmetric/Hermitian matrix, using scaling factors computed by spoequ. More...
 
subroutine zsymv (UPLO, N, ALPHA, A, LDA, X, INCX, BETA, Y, INCY)
 ZSYMV computes a matrix-vector product for a complex symmetric matrix. More...
 
subroutine zsyr (UPLO, N, ALPHA, X, INCX, A, LDA)
 ZSYR performs the symmetric rank-1 update of a complex symmetric matrix. More...
 
subroutine zsyswapr (UPLO, N, A, LDA, I1, I2)
 ZSYSWAPR More...
 
subroutine ztgsy2 (TRANS, IJOB, M, N, A, LDA, B, LDB, C, LDC, D, LDD, E, LDE, F, LDF, SCALE, RDSUM, RDSCAL, INFO)
 ZTGSY2 solves the generalized Sylvester equation (unblocked algorithm). More...
 

Detailed Description

This is the group of complex16 auxiliary functions for SY matrices

zgesc2
subroutine zgesc2(N, A, LDA, RHS, IPIV, JPIV, SCALE)
ZGESC2 solves a system of linear equations using the LU factorization with complete pivoting computed...
Definition: zgesc2.f:117
zlansy
double precision function zlansy(NORM, UPLO, N, A, LDA, WORK)
ZLANSY returns the value of the 1-norm, or the Frobenius norm, or the infinity norm,...
Definition: zlansy.f:125
zaxpy
subroutine zaxpy(N, ZA, ZX, INCX, ZY, INCY)
ZAXPY
Definition: zaxpy.f:90
lde
logical function lde(RI, RJ, LR)
Definition: dblat2.f:2945
zlassq
subroutine zlassq(N, X, INCX, SCALE, SUMSQ)
ZLASSQ updates a sum of squares represented in scaled form.
Definition: zlassq.f:108
disnan
logical function disnan(DIN)
DISNAN tests input for NaN.
Definition: disnan.f:61
xerbla
subroutine xerbla(SRNAME, INFO)
XERBLA
Definition: xerbla.f:62
zgetc2
subroutine zgetc2(N, A, LDA, IPIV, JPIV, INFO)
ZGETC2 computes the LU factorization with complete pivoting of the general n-by-n matrix.
Definition: zgetc2.f:113
lsame
logical function lsame(CA, CB)
LSAME
Definition: lsame.f:55
zswap
subroutine zswap(N, ZX, INCX, ZY, INCY)
ZSWAP
Definition: zswap.f:83
dcombssq
subroutine dcombssq(V1, V2)
DCOMBSSQ adds two scaled sum of squares quantities.
Definition: dcombssq.f:62
zscal
subroutine zscal(N, ZA, ZX, INCX)
ZSCAL
Definition: zscal.f:80
dlamch
double precision function dlamch(CMACH)
DLAMCH
Definition: dlamch.f:70
zlatdf
subroutine zlatdf(IJOB, N, Z, LDZ, RHS, RDSUM, RDSCAL, IPIV, JPIV)
ZLATDF uses the LU factorization of the n-by-n matrix computed by sgetc2 and computes a contribution ...
Definition: zlatdf.f:171