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LAPACK
3.9.0
LAPACK: Linear Algebra PACKage
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| double precision function | dlansy (NORM, UPLO, N, A, LDA, WORK) |
| | DLANSY returns the value of the 1-norm, or the Frobenius norm, or the infinity norm, or the element of largest absolute value of a real symmetric matrix. More...
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| subroutine | dlaqsy (UPLO, N, A, LDA, S, SCOND, AMAX, EQUED) |
| | DLAQSY scales a symmetric/Hermitian matrix, using scaling factors computed by spoequ. More...
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| subroutine | dlasy2 (LTRANL, LTRANR, ISGN, N1, N2, TL, LDTL, TR, LDTR, B, LDB, SCALE, X, LDX, XNORM, INFO) |
| | DLASY2 solves the Sylvester matrix equation where the matrices are of order 1 or 2. More...
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| subroutine | dsyswapr (UPLO, N, A, LDA, I1, I2) |
| | DSYSWAPR applies an elementary permutation on the rows and columns of a symmetric matrix. More...
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| subroutine | dtgsy2 (TRANS, IJOB, M, N, A, LDA, B, LDB, C, LDC, D, LDD, E, LDE, F, LDF, SCALE, RDSUM, RDSCAL, IWORK, PQ, INFO) |
| | DTGSY2 solves the generalized Sylvester equation (unblocked algorithm). More...
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This is the group of double auxiliary functions for SY matrices
subroutine dger(M, N, ALPHA, X, INCX, Y, INCY, A, LDA)
DGER
integer function idamax(N, DX, INCX)
IDAMAX
subroutine dgesc2(N, A, LDA, RHS, IPIV, JPIV, SCALE)
DGESC2 solves a system of linear equations using the LU factorization with complete pivoting computed...
logical function lde(RI, RJ, LR)
double precision function dlansy(NORM, UPLO, N, A, LDA, WORK)
DLANSY returns the value of the 1-norm, or the Frobenius norm, or the infinity norm,...
logical function disnan(DIN)
DISNAN tests input for NaN.
subroutine dcopy(N, DX, INCX, DY, INCY)
DCOPY
subroutine dgemm(TRANSA, TRANSB, M, N, K, ALPHA, A, LDA, B, LDB, BETA, C, LDC)
DGEMM
subroutine xerbla(SRNAME, INFO)
XERBLA
logical function lsame(CA, CB)
LSAME
subroutine dgemv(TRANS, M, N, ALPHA, A, LDA, X, INCX, BETA, Y, INCY)
DGEMV
subroutine dlassq(N, X, INCX, SCALE, SUMSQ)
DLASSQ updates a sum of squares represented in scaled form.
subroutine dswap(N, DX, INCX, DY, INCY)
DSWAP
subroutine dlatdf(IJOB, N, Z, LDZ, RHS, RDSUM, RDSCAL, IPIV, JPIV)
DLATDF uses the LU factorization of the n-by-n matrix computed by sgetc2 and computes a contribution ...
subroutine dgetc2(N, A, LDA, IPIV, JPIV, INFO)
DGETC2 computes the LU factorization with complete pivoting of the general n-by-n matrix.
subroutine dlaset(UPLO, M, N, ALPHA, BETA, A, LDA)
DLASET initializes the off-diagonal elements and the diagonal elements of a matrix to given values.
subroutine dcombssq(V1, V2)
DCOMBSSQ adds two scaled sum of squares quantities.
subroutine dscal(N, DA, DX, INCX)
DSCAL
double precision function dlamch(CMACH)
DLAMCH
subroutine daxpy(N, DA, DX, INCX, DY, INCY)
DAXPY
1.8.16