Section 3: library functions
chegst.f – SynopsisFunctions/Subroutinessubroutine chegst (ITYPE, UPLO, N, A, LDA, B, LDB, INFO) CHEGST Function/Subroutine Documentationsubroutine chegst (integerITYPE, characterUPLO, integerN, complex, dimension( lda, * )A, integerLDA, complex, dimension( ldb, * )B, integerLDB, integerINFO)CHEGST Purpose: CHEGST reduces a complex Hermitian-definite generalized eigenproblem to standard form. If ITYPE = 1, the problem is A*x = lambda*B*x, and A…
chegs2.f – SynopsisFunctions/Subroutinessubroutine chegs2 (ITYPE, UPLO, N, A, LDA, B, LDB, INFO) CHEGS2 reduces a Hermitian definite generalized eigenproblem to standard form, using the factorization results obtained from cpotrf (unblocked algorithm). Function/Subroutine Documentationsubroutine chegs2 (integerITYPE, characterUPLO, integerN, complex, dimension( lda, * )A, integerLDA, complex, dimension( ldb, * )B, integerLDB, integerINFO)CHEGS2 reduces a Hermitian definite generalized…
cheevx.f – SynopsisFunctions/Subroutinessubroutine cheevx (JOBZ, RANGE, UPLO, N, A, LDA, VL, VU, IL, IU, ABSTOL, M, W, Z, LDZ, WORK, LWORK, RWORK, IWORK, IFAIL, INFO) CHEEVX computes the eigenvalues and, optionally, the left and/or right eigenvectors for HE matrices Function/Subroutine Documentationsubroutine cheevx (characterJOBZ, characterRANGE, characterUPLO, integerN, complex, dimension( lda, * )A, integerLDA, realVL, realVU, integerIL,…
cheevr.f – SynopsisFunctions/Subroutinessubroutine cheevr (JOBZ, RANGE, UPLO, N, A, LDA, VL, VU, IL, IU, ABSTOL, M, W, Z, LDZ, ISUPPZ, WORK, LWORK, RWORK, LRWORK, IWORK, LIWORK, INFO) CHEEVR computes the eigenvalues and, optionally, the left and/or right eigenvectors for HE matrices Function/Subroutine Documentationsubroutine cheevr (characterJOBZ, characterRANGE, characterUPLO, integerN, complex, dimension( lda, * )A, integerLDA, realVL,…
cheevd.f – SynopsisFunctions/Subroutinessubroutine cheevd (JOBZ, UPLO, N, A, LDA, W, WORK, LWORK, RWORK, LRWORK, IWORK, LIWORK, INFO) CHEEVD computes the eigenvalues and, optionally, the left and/or right eigenvectors for HE matrices Function/Subroutine Documentationsubroutine cheevd (characterJOBZ, characterUPLO, integerN, complex, dimension( lda, * )A, integerLDA, real, dimension( * )W, complex, dimension( * )WORK, integerLWORK, real, dimension( *…
cheev.f – SynopsisFunctions/Subroutinessubroutine cheev (JOBZ, UPLO, N, A, LDA, W, WORK, LWORK, RWORK, INFO) CHEEV computes the eigenvalues and, optionally, the left and/or right eigenvectors for HE matrices Function/Subroutine Documentationsubroutine cheev (characterJOBZ, characterUPLO, integerN, complex, dimension( lda, * )A, integerLDA, real, dimension( * )W, complex, dimension( * )WORK, integerLWORK, real, dimension( * )RWORK, integerINFO) CHEEV…
cheequb.f – SynopsisFunctions/Subroutinessubroutine cheequb (UPLO, N, A, LDA, S, SCOND, AMAX, WORK, INFO) CHEEQUB Function/Subroutine Documentationsubroutine cheequb (characterUPLO, integerN, complex, dimension( lda, * )A, integerLDA, real, dimension( * )S, realSCOND, realAMAX, complex, dimension( * )WORK, integerINFO)CHEEQUB Purpose: CHEEQUB computes row and column scalings intended to equilibrate a Hermitian matrix A and reduce its condition number…
checon.f – SynopsisFunctions/Subroutinessubroutine checon (UPLO, N, A, LDA, IPIV, ANORM, RCOND, WORK, INFO) CHECON Function/Subroutine Documentationsubroutine checon (characterUPLO, integerN, complex, dimension( lda, * )A, integerLDA, integer, dimension( * )IPIV, realANORM, realRCOND, complex, dimension( * )WORK, integerINFO)CHECON Purpose: CHECON estimates the reciprocal of the condition number of a complex Hermitian matrix A using the factorization A…
chbtrd.f – SynopsisFunctions/Subroutinessubroutine chbtrd (VECT, UPLO, N, KD, AB, LDAB, D, E, Q, LDQ, WORK, INFO) CHBTRD Function/Subroutine Documentationsubroutine chbtrd (characterVECT, characterUPLO, integerN, integerKD, complex, dimension( ldab, * )AB, integerLDAB, real, dimension( * )D, real, dimension( * )E, complex, dimension( ldq, * )Q, integerLDQ, complex, dimension( * )WORK, integerINFO)CHBTRD Purpose: CHBTRD reduces a complex Hermitian…
chbmv.f – SynopsisFunctions/Subroutinessubroutine chbmv (UPLO, N, K, ALPHA, A, LDA, X, INCX, BETA, Y, INCY) CHBMV Function/Subroutine Documentationsubroutine chbmv (characterUPLO, integerN, integerK, complexALPHA, complex, dimension(lda,*)A, integerLDA, complex, dimension(*)X, integerINCX, complexBETA, complex, dimension(*)Y, integerINCY)CHBMV Purpose: CHBMV performs the matrix-vector operation y := alpha*A*x + beta*y, where alpha and beta are scalars, x and y are n…
chbgvx.f – SynopsisFunctions/Subroutinessubroutine chbgvx (JOBZ, RANGE, UPLO, N, KA, KB, AB, LDAB, BB, LDBB, Q, LDQ, VL, VU, IL, IU, ABSTOL, M, W, Z, LDZ, WORK, RWORK, IWORK, IFAIL, INFO) CHBGST Function/Subroutine Documentationsubroutine chbgvx (characterJOBZ, characterRANGE, characterUPLO, integerN, integerKA, integerKB, complex, dimension( ldab, * )AB, integerLDAB, complex, dimension( ldbb, * )BB, integerLDBB, complex, dimension( ldq,…
chbgvd.f – SynopsisFunctions/Subroutinessubroutine chbgvd (JOBZ, UPLO, N, KA, KB, AB, LDAB, BB, LDBB, W, Z, LDZ, WORK, LWORK, RWORK, LRWORK, IWORK, LIWORK, INFO) CHBGST Function/Subroutine Documentationsubroutine chbgvd (characterJOBZ, characterUPLO, integerN, integerKA, integerKB, complex, dimension( ldab, * )AB, integerLDAB, complex, dimension( ldbb, * )BB, integerLDBB, real, dimension( * )W, complex, dimension( ldz, * )Z, integerLDZ, complex,…
chbgv.f – SynopsisFunctions/Subroutinessubroutine chbgv (JOBZ, UPLO, N, KA, KB, AB, LDAB, BB, LDBB, W, Z, LDZ, WORK, RWORK, INFO) CHBGST Function/Subroutine Documentationsubroutine chbgv (characterJOBZ, characterUPLO, integerN, integerKA, integerKB, complex, dimension( ldab, * )AB, integerLDAB, complex, dimension( ldbb, * )BB, integerLDBB, real, dimension( * )W, complex, dimension( ldz, * )Z, integerLDZ, complex, dimension( * )WORK, real,…
chbgst.f – SynopsisFunctions/Subroutinessubroutine chbgst (VECT, UPLO, N, KA, KB, AB, LDAB, BB, LDBB, X, LDX, WORK, RWORK, INFO) CHBGST Function/Subroutine Documentationsubroutine chbgst (characterVECT, characterUPLO, integerN, integerKA, integerKB, complex, dimension( ldab, * )AB, integerLDAB, complex, dimension( ldbb, * )BB, integerLDBB, complex, dimension( ldx, * )X, integerLDX, complex, dimension( * )WORK, real, dimension( * )RWORK, integerINFO)CHBGST Purpose:…
chbevx.f – SynopsisFunctions/Subroutinessubroutine chbevx (JOBZ, RANGE, UPLO, N, KD, AB, LDAB, Q, LDQ, VL, VU, IL, IU, ABSTOL, M, W, Z, LDZ, WORK, RWORK, IWORK, IFAIL, INFO) CHBEVX computes the eigenvalues and, optionally, the left and/or right eigenvectors for OTHER matrices Function/Subroutine Documentationsubroutine chbevx (characterJOBZ, characterRANGE, characterUPLO, integerN, integerKD, complex, dimension( ldab, * )AB, integerLDAB,…
chbevd.f – SynopsisFunctions/Subroutinessubroutine chbevd (JOBZ, UPLO, N, KD, AB, LDAB, W, Z, LDZ, WORK, LWORK, RWORK, LRWORK, IWORK, LIWORK, INFO) CHBEVD computes the eigenvalues and, optionally, the left and/or right eigenvectors for OTHER matrices Function/Subroutine Documentationsubroutine chbevd (characterJOBZ, characterUPLO, integerN, integerKD, complex, dimension( ldab, * )AB, integerLDAB, real, dimension( * )W, complex, dimension( ldz, *…
chbev.f – SynopsisFunctions/Subroutinessubroutine chbev (JOBZ, UPLO, N, KD, AB, LDAB, W, Z, LDZ, WORK, RWORK, INFO) CHBEV computes the eigenvalues and, optionally, the left and/or right eigenvectors for OTHER matrices Function/Subroutine Documentationsubroutine chbev (characterJOBZ, characterUPLO, integerN, integerKD, complex, dimension( ldab, * )AB, integerLDAB, real, dimension( * )W, complex, dimension( ldz, * )Z, integerLDZ, complex, dimension(…
cgtts2.f – SynopsisFunctions/Subroutinessubroutine cgtts2 (ITRANS, N, NRHS, DL, D, DU, DU2, IPIV, B, LDB) CGTTS2 solves a system of linear equations with a tridiagonal matrix using the LU factorization computed by sgttrf. Function/Subroutine Documentationsubroutine cgtts2 (integerITRANS, integerN, integerNRHS, complex, dimension( * )DL, complex, dimension( * )D, complex, dimension( * )DU, complex, dimension( * )DU2, integer,…
cgttrs.f – SynopsisFunctions/Subroutinessubroutine cgttrs (TRANS, N, NRHS, DL, D, DU, DU2, IPIV, B, LDB, INFO) CGTTRS Function/Subroutine Documentationsubroutine cgttrs (characterTRANS, integerN, integerNRHS, complex, dimension( * )DL, complex, dimension( * )D, complex, dimension( * )DU, complex, dimension( * )DU2, integer, dimension( * )IPIV, complex, dimension( ldb, * )B, integerLDB, integerINFO)CGTTRS Purpose: CGTTRS solves one of the…
cgttrf.f – SynopsisFunctions/Subroutinessubroutine cgttrf (N, DL, D, DU, DU2, IPIV, INFO) CGTTRF Function/Subroutine Documentationsubroutine cgttrf (integerN, complex, dimension( * )DL, complex, dimension( * )D, complex, dimension( * )DU, complex, dimension( * )DU2, integer, dimension( * )IPIV, integerINFO)CGTTRF Purpose: CGTTRF computes an LU factorization of a complex tridiagonal matrix A using elimination with partial pivoting and…