Section 3: library functions
dstegr.f – Synopsis Functions/Subroutines subroutine dstegr (JOBZ, RANGE, N, D, E, VL, VU, IL, IU, ABSTOL, M, W, Z, LDZ, ISUPPZ, WORK, LWORK, IWORK, LIWORK, INFO) DSTEGR Function/Subroutine Documentation subroutine dstegr (characterJOBZ, characterRANGE, integerN, double precision, dimension( * )D, double precision, dimension( * )E, double precisionVL, double precisionVU, integerIL, integerIU, double precisionABSTOL, integerM, double precision,…
dstedc.f – Synopsis Functions/Subroutines subroutine dstedc (COMPZ, N, D, E, Z, LDZ, WORK, LWORK, IWORK, LIWORK, INFO) DSTEBZ Function/Subroutine Documentation subroutine dstedc (characterCOMPZ, integerN, double precision, dimension( * )D, double precision, dimension( * )E, double precision, dimension( ldz, * )Z, integerLDZ, double precision, dimension( * )WORK, integerLWORK, integer, dimension( * )IWORK, integerLIWORK, integerINFO) DSTEBZ Purpose:…
dstebz.f – Synopsis Functions/Subroutines subroutine dstebz (RANGE, ORDER, N, VL, VU, IL, IU, ABSTOL, D, E, M, NSPLIT, W, IBLOCK, ISPLIT, WORK, IWORK, INFO) DSTEBZ Function/Subroutine Documentation subroutine dstebz (characterRANGE, characterORDER, integerN, double precisionVL, double precisionVU, integerIL, integerIU, double precisionABSTOL, double precision, dimension( * )D, double precision, dimension( * )E, integerM, integerNSPLIT, double precision, dimension(…
dsptrs.f – Synopsis Functions/Subroutines subroutine dsptrs (UPLO, N, NRHS, AP, IPIV, B, LDB, INFO) DSPTRS Function/Subroutine Documentation subroutine dsptrs (characterUPLO, integerN, integerNRHS, double precision, dimension( * )AP, integer, dimension( * )IPIV, double precision, dimension( ldb, * )B, integerLDB, integerINFO) DSPTRS Purpose: DSPTRS solves a system of linear equations A*X = B with a real symmetric…
dsptri.f – Synopsis Functions/Subroutines subroutine dsptri (UPLO, N, AP, IPIV, WORK, INFO) DSPTRI Function/Subroutine Documentation subroutine dsptri (characterUPLO, integerN, double precision, dimension( * )AP, integer, dimension( * )IPIV, double precision, dimension( * )WORK, integerINFO) DSPTRI Purpose: DSPTRI computes the inverse of a real symmetric indefinite matrix A in packed storage using the factorization A =…
dsptrf.f – Synopsis Functions/Subroutines subroutine dsptrf (UPLO, N, AP, IPIV, INFO) DSPTRF Function/Subroutine Documentation subroutine dsptrf (characterUPLO, integerN, double precision, dimension( * )AP, integer, dimension( * )IPIV, integerINFO) DSPTRF Purpose: DSPTRF computes the factorization of a real symmetric matrix A stored in packed format using the Bunch-Kaufman diagonal pivoting method: A = U*D*U**T or A…
dsptrd.f – Synopsis Functions/Subroutines subroutine dsptrd (UPLO, N, AP, D, E, TAU, INFO) DSPTRD Function/Subroutine Documentation subroutine dsptrd (characterUPLO, integerN, double precision, dimension( * )AP, double precision, dimension( * )D, double precision, dimension( * )E, double precision, dimension( * )TAU, integerINFO) DSPTRD Purpose: DSPTRD reduces a real symmetric matrix A stored in packed form to…
dspsvx.f – Synopsis Functions/Subroutines subroutine dspsvx (FACT, UPLO, N, NRHS, AP, AFP, IPIV, B, LDB, X, LDX, RCOND, FERR, BERR, WORK, IWORK, INFO) DSPSVX computes the solution to system of linear equations A * X = B for OTHER matrices Function/Subroutine Documentation subroutine dspsvx (characterFACT, characterUPLO, integerN, integerNRHS, double precision, dimension( * )AP, double precision,…
dspsv.f – Synopsis Functions/Subroutines subroutine dspsv (UPLO, N, NRHS, AP, IPIV, B, LDB, INFO) DSPSV computes the solution to system of linear equations A * X = B for OTHER matrices Function/Subroutine Documentation subroutine dspsv (characterUPLO, integerN, integerNRHS, double precision, dimension( * )AP, integer, dimension( * )IPIV, double precision, dimension( ldb, * )B, integerLDB, integerINFO)…
dsprfs.f – Synopsis Functions/Subroutines subroutine dsprfs (UPLO, N, NRHS, AP, AFP, IPIV, B, LDB, X, LDX, FERR, BERR, WORK, IWORK, INFO) DSPRFS Function/Subroutine Documentation subroutine dsprfs (characterUPLO, integerN, integerNRHS, double precision, dimension( * )AP, double precision, dimension( * )AFP, integer, dimension( * )IPIV, double precision, dimension( ldb, * )B, integerLDB, double precision, dimension( ldx, *…
dspr2.f – Synopsis Functions/Subroutines subroutine dspr2 (UPLO, N, ALPHA, X, INCX, Y, INCY, AP) DSPR2 Function/Subroutine Documentation subroutine dspr2 (characterUPLO, integerN, double precisionALPHA, double precision, dimension(*)X, integerINCX, double precision, dimension(*)Y, integerINCY, double precision, dimension(*)AP) DSPR2 Purpose: DSPR2 performs the symmetric rank 2 operation A := alpha*x*y**T + alpha*y*x**T + A, where alpha is a scalar,…
dspr.f – Synopsis Functions/Subroutines subroutine dspr (UPLO, N, ALPHA, X, INCX, AP) DSPR Function/Subroutine Documentation subroutine dspr (characterUPLO, integerN, double precisionALPHA, double precision, dimension(*)X, integerINCX, double precision, dimension(*)AP) DSPR Purpose: DSPR performs the symmetric rank 1 operation A := alpha*x*x**T + A, where alpha is a real scalar, x is an n element vector and…
dsposv.f – Synopsis Functions/Subroutines subroutine dsposv (UPLO, N, NRHS, A, LDA, B, LDB, X, LDX, WORK, SWORK, ITER, INFO) DSPOSV computes the solution to system of linear equations A * X = B for PO matrices Function/Subroutine Documentation subroutine dsposv (characterUPLO, integerN, integerNRHS, double precision, dimension( lda, * )A, integerLDA, double precision, dimension( ldb, *…
dspmv.f – Synopsis Functions/Subroutines subroutine dspmv (UPLO, N, ALPHA, AP, X, INCX, BETA, Y, INCY) DSPMV Function/Subroutine Documentation subroutine dspmv (characterUPLO, integerN, double precisionALPHA, double precision, dimension(*)AP, double precision, dimension(*)X, integerINCX, double precisionBETA, double precision, dimension(*)Y, integerINCY) DSPMV Purpose: DSPMV performs the matrix-vector operation y := alpha*A*x + beta*y, where alpha and beta are scalars,…
dspgvx.f – Synopsis Functions/Subroutines subroutine dspgvx (ITYPE, JOBZ, RANGE, UPLO, N, AP, BP, VL, VU, IL, IU, ABSTOL, M, W, Z, LDZ, WORK, IWORK, IFAIL, INFO) DSPGST Function/Subroutine Documentation subroutine dspgvx (integerITYPE, characterJOBZ, characterRANGE, characterUPLO, integerN, double precision, dimension( * )AP, double precision, dimension( * )BP, double precisionVL, double precisionVU, integerIL, integerIU, double precisionABSTOL, integerM,…
dspgvd.f – Synopsis Functions/Subroutines subroutine dspgvd (ITYPE, JOBZ, UPLO, N, AP, BP, W, Z, LDZ, WORK, LWORK, IWORK, LIWORK, INFO) DSPGST Function/Subroutine Documentation subroutine dspgvd (integerITYPE, characterJOBZ, characterUPLO, integerN, double precision, dimension( * )AP, double precision, dimension( * )BP, double precision, dimension( * )W, double precision, dimension( ldz, * )Z, integerLDZ, double precision, dimension( *…
dspgv.f – Synopsis Functions/Subroutines subroutine dspgv (ITYPE, JOBZ, UPLO, N, AP, BP, W, Z, LDZ, WORK, INFO) DSPGST Function/Subroutine Documentation subroutine dspgv (integerITYPE, characterJOBZ, characterUPLO, integerN, double precision, dimension( * )AP, double precision, dimension( * )BP, double precision, dimension( * )W, double precision, dimension( ldz, * )Z, integerLDZ, double precision, dimension( * )WORK, integerINFO) DSPGST…
dspgst.f – Synopsis Functions/Subroutines subroutine dspgst (ITYPE, UPLO, N, AP, BP, INFO) DSPGST Function/Subroutine Documentation subroutine dspgst (integerITYPE, characterUPLO, integerN, double precision, dimension( * )AP, double precision, dimension( * )BP, integerINFO) DSPGST Purpose: DSPGST reduces a real symmetric-definite generalized eigenproblem to standard form, using packed storage. If ITYPE = 1, the problem is A*x =…
dspevx.f – Synopsis Functions/Subroutines subroutine dspevx (JOBZ, RANGE, UPLO, N, AP, VL, VU, IL, IU, ABSTOL, M, W, Z, LDZ, WORK, IWORK, IFAIL, INFO) DSPEVX computes the eigenvalues and, optionally, the left and/or right eigenvectors for OTHER matrices Function/Subroutine Documentation subroutine dspevx (characterJOBZ, characterRANGE, characterUPLO, integerN, double precision, dimension( * )AP, double precisionVL, double precisionVU,…
dspevd.f – Synopsis Functions/Subroutines subroutine dspevd (JOBZ, UPLO, N, AP, W, Z, LDZ, WORK, LWORK, IWORK, LIWORK, INFO) DSPEVD computes the eigenvalues and, optionally, the left and/or right eigenvectors for OTHER matrices Function/Subroutine Documentation subroutine dspevd (characterJOBZ, characterUPLO, integerN, double precision, dimension( * )AP, double precision, dimension( * )W, double precision, dimension( ldz, * )Z,…