LAPACK
3.6.1
LAPACK: Linear Algebra PACKage
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Functions | |
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... | |
subroutine | dlaqsy (UPLO, N, A, LDA, S, SCOND, AMAX, EQUED) |
DLAQSY scales a symmetric/Hermitian matrix, using scaling factors computed by spoequ. More... | |
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... | |
subroutine | dsyswapr (UPLO, N, A, LDA, I1, I2) |
DSYSWAPR applies an elementary permutation on the rows and columns of a symmetric matrix. More... | |
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... | |
This is the group of double auxiliary functions for SY matrices