Section 3: library functions
dsygvx.f – SynopsisFunctions/Subroutinessubroutine dsygvx (ITYPE, JOBZ, RANGE, UPLO, N, A, LDA, B, LDB, VL, VU, IL, IU, ABSTOL, M, W, Z, LDZ, WORK, LWORK, IWORK, IFAIL, INFO) DSYGST Function/Subroutine Documentationsubroutine dsygvx (integerITYPE, characterJOBZ, characterRANGE, characterUPLO, integerN, double precision, dimension( lda, * )A, integerLDA, double precision, dimension( ldb, * )B, integerLDB, double precisionVL, double precisionVU, integerIL,…
dsygvd.f – SynopsisFunctions/Subroutinessubroutine dsygvd (ITYPE, JOBZ, UPLO, N, A, LDA, B, LDB, W, WORK, LWORK, IWORK, LIWORK, INFO) DSYGST Function/Subroutine Documentationsubroutine dsygvd (integerITYPE, characterJOBZ, characterUPLO, integerN, double precision, dimension( lda, * )A, integerLDA, double precision, dimension( ldb, * )B, integerLDB, double precision, dimension( * )W, double precision, dimension( * )WORK, integerLWORK, integer, dimension( * )IWORK,…
dsygv.f – SynopsisFunctions/Subroutinessubroutine dsygv (ITYPE, JOBZ, UPLO, N, A, LDA, B, LDB, W, WORK, LWORK, INFO) DSYGST Function/Subroutine Documentationsubroutine dsygv (integerITYPE, characterJOBZ, characterUPLO, integerN, double precision, dimension( lda, * )A, integerLDA, double precision, dimension( ldb, * )B, integerLDB, double precision, dimension( * )W, double precision, dimension( * )WORK, integerLWORK, integerINFO)DSYGST Purpose: DSYGV computes all the…
dsygst.f – SynopsisFunctions/Subroutinessubroutine dsygst (ITYPE, UPLO, N, A, LDA, B, LDB, INFO) DSYGST Function/Subroutine Documentationsubroutine dsygst (integerITYPE, characterUPLO, integerN, double precision, dimension( lda, * )A, integerLDA, double precision, dimension( ldb, * )B, integerLDB, integerINFO)DSYGST Purpose: DSYGST reduces a real symmetric-definite generalized eigenproblem to standard form. If ITYPE = 1, the problem is A*x = lambda*B*x,…
dsygs2.f – SynopsisFunctions/Subroutinessubroutine dsygs2 (ITYPE, UPLO, N, A, LDA, B, LDB, INFO) DSYGS2 reduces a symmetric definite generalized eigenproblem to standard form, using the factorization results obtained from spotrf (unblocked algorithm). Function/Subroutine Documentationsubroutine dsygs2 (integerITYPE, characterUPLO, integerN, double precision, dimension( lda, * )A, integerLDA, double precision, dimension( ldb, * )B, integerLDB, integerINFO)DSYGS2 reduces a symmetric…
dsyevx.f – SynopsisFunctions/Subroutinessubroutine dsyevx (JOBZ, RANGE, UPLO, N, A, LDA, VL, VU, IL, IU, ABSTOL, M, W, Z, LDZ, WORK, LWORK, IWORK, IFAIL, INFO) DSYEVX computes the eigenvalues and, optionally, the left and/or right eigenvectors for SY matrices Function/Subroutine Documentationsubroutine dsyevx (characterJOBZ, characterRANGE, characterUPLO, integerN, double precision, dimension( lda, * )A, integerLDA, double precisionVL, double…
dsyevr.f – SynopsisFunctions/Subroutinessubroutine dsyevr (JOBZ, RANGE, UPLO, N, A, LDA, VL, VU, IL, IU, ABSTOL, M, W, Z, LDZ, ISUPPZ, WORK, LWORK, IWORK, LIWORK, INFO) DSYEVR computes the eigenvalues and, optionally, the left and/or right eigenvectors for SY matrices Function/Subroutine Documentationsubroutine dsyevr (characterJOBZ, characterRANGE, characterUPLO, integerN, double precision, dimension( lda, * )A, integerLDA, double precisionVL,…
dsyevd.f – SynopsisFunctions/Subroutinessubroutine dsyevd (JOBZ, UPLO, N, A, LDA, W, WORK, LWORK, IWORK, LIWORK, INFO) DSYEVD computes the eigenvalues and, optionally, the left and/or right eigenvectors for SY matrices Function/Subroutine Documentationsubroutine dsyevd (characterJOBZ, characterUPLO, integerN, double precision, dimension( lda, * )A, integerLDA, double precision, dimension( * )W, double precision, dimension( * )WORK, integerLWORK, integer, dimension(…
dsyev.f – SynopsisFunctions/Subroutinessubroutine dsyev (JOBZ, UPLO, N, A, LDA, W, WORK, LWORK, INFO) DSYEV computes the eigenvalues and, optionally, the left and/or right eigenvectors for SY matrices Function/Subroutine Documentationsubroutine dsyev (characterJOBZ, characterUPLO, integerN, double precision, dimension( lda, * )A, integerLDA, double precision, dimension( * )W, double precision, dimension( * )WORK, integerLWORK, integerINFO) DSYEV computes the…
dsyequb.f – SynopsisFunctions/Subroutinessubroutine dsyequb (UPLO, N, A, LDA, S, SCOND, AMAX, WORK, INFO) DSYEQUB Function/Subroutine Documentationsubroutine dsyequb (characterUPLO, integerN, double precision, dimension( lda, * )A, integerLDA, double precision, dimension( * )S, double precisionSCOND, double precisionAMAX, double precision, dimension( * )WORK, integerINFO)DSYEQUB Purpose: DSYEQUB computes row and column scalings intended to equilibrate a symmetric matrix A…
dsyconv.f – SynopsisFunctions/Subroutinessubroutine dsyconv (UPLO, WAY, N, A, LDA, IPIV, WORK, INFO) DSYCONV Function/Subroutine Documentationsubroutine dsyconv (characterUPLO, characterWAY, integerN, double precision, dimension( lda, * )A, integerLDA, integer, dimension( * )IPIV, double precision, dimension( * )WORK, integerINFO)DSYCONV Purpose: DSYCONV convert A given by TRF into L and D and vice-versa. Get Non-diag elements of D (returned…
dsycon.f – SynopsisFunctions/Subroutinessubroutine dsycon (UPLO, N, A, LDA, IPIV, ANORM, RCOND, WORK, IWORK, INFO) DSYCON Function/Subroutine Documentationsubroutine dsycon (characterUPLO, integerN, double precision, dimension( lda, * )A, integerLDA, integer, dimension( * )IPIV, double precisionANORM, double precisionRCOND, double precision, dimension( * )WORK, integer, dimension( * )IWORK, integerINFO)DSYCON Purpose: DSYCON estimates the reciprocal of the condition number (in…
dswap.f – SynopsisFunctions/Subroutinessubroutine dswap (N, DX, INCX, DY, INCY) DSWAP Function/Subroutine Documentationsubroutine dswap (integerN, double precision, dimension(*)DX, integerINCX, double precision, dimension(*)DY, integerINCY)DSWAP Purpose: interchanges two vectors. uses unrolled loops for increments equal one. Author: Univ. of Tennessee Univ. of California Berkeley Univ. of Colorado Denver NAG Ltd. Date: November 2011 Further Details: jack dongarra, linpack,…
dstevx.f – SynopsisFunctions/Subroutinessubroutine dstevx (JOBZ, RANGE, N, D, E, VL, VU, IL, IU, ABSTOL, M, W, Z, LDZ, WORK, IWORK, IFAIL, INFO) DSTEVX computes the eigenvalues and, optionally, the left and/or right eigenvectors for OTHER matrices Function/Subroutine Documentationsubroutine dstevx (characterJOBZ, characterRANGE, integerN, double precision, dimension( * )D, double precision, dimension( * )E, double precisionVL, double…
dstevr.f – SynopsisFunctions/Subroutinessubroutine dstevr (JOBZ, RANGE, N, D, E, VL, VU, IL, IU, ABSTOL, M, W, Z, LDZ, ISUPPZ, WORK, LWORK, IWORK, LIWORK, INFO) DSTEVR computes the eigenvalues and, optionally, the left and/or right eigenvectors for OTHER matrices Function/Subroutine Documentationsubroutine dstevr (characterJOBZ, characterRANGE, integerN, double precision, dimension( * )D, double precision, dimension( * )E, double…
dstevd.f – SynopsisFunctions/Subroutinessubroutine dstevd (JOBZ, N, D, E, Z, LDZ, WORK, LWORK, IWORK, LIWORK, INFO) DSTEVD computes the eigenvalues and, optionally, the left and/or right eigenvectors for OTHER matrices Function/Subroutine Documentationsubroutine dstevd (characterJOBZ, integerN, double precision, dimension( * )D, double precision, dimension( * )E, double precision, dimension( ldz, * )Z, integerLDZ, double precision, dimension( *…
dstev.f – SynopsisFunctions/Subroutinessubroutine dstev (JOBZ, N, D, E, Z, LDZ, WORK, INFO) DSTEV computes the eigenvalues and, optionally, the left and/or right eigenvectors for OTHER matrices Function/Subroutine Documentationsubroutine dstev (characterJOBZ, integerN, double precision, dimension( * )D, double precision, dimension( * )E, double precision, dimension( ldz, * )Z, integerLDZ, double precision, dimension( * )WORK, integerINFO) DSTEV…
dsterf.f – SynopsisFunctions/Subroutinessubroutine dsterf (N, D, E, INFO) DSTERF Function/Subroutine Documentationsubroutine dsterf (integerN, double precision, dimension( * )D, double precision, dimension( * )E, integerINFO)DSTERF Purpose: DSTERF computes all eigenvalues of a symmetric tridiagonal matrix using the Pal-Walker-Kahan variant of the QL or QR algorithm. Parameters: N N is INTEGER The order of the matrix. N…
dsteqr.f – SynopsisFunctions/Subroutinessubroutine dsteqr (COMPZ, N, D, E, Z, LDZ, WORK, INFO) DSTEQR Function/Subroutine Documentationsubroutine dsteqr (characterCOMPZ, integerN, double precision, dimension( * )D, double precision, dimension( * )E, double precision, dimension( ldz, * )Z, integerLDZ, double precision, dimension( * )WORK, integerINFO)DSTEQR Purpose: DSTEQR computes all eigenvalues and, optionally, eigenvectors of a symmetric tridiagonal matrix using…
dstemr.f – SynopsisFunctions/Subroutinessubroutine dstemr (JOBZ, RANGE, N, D, E, VL, VU, IL, IU, M, W, Z, LDZ, NZC, ISUPPZ, TRYRAC, WORK, LWORK, IWORK, LIWORK, INFO) DSTEMR Function/Subroutine Documentationsubroutine dstemr (characterJOBZ, characterRANGE, integerN, double precision, dimension( * )D, double precision, dimension( * )E, double precisionVL, double precisionVU, integerIL, integerIU, integerM, double precision, dimension( * )W, double…