dlanhs.f – Synopsis Functions/Subroutines DOUBLE PRECISION function dlanhs (NORM, N, A, LDA, WORK) DLANHS returns the value of the 1-norm, Frobenius norm, infinity-norm, or the largest absolute value of any element of an upper Hessenberg matrix. Function/Subroutine Documentation DOUBLE PRECISION function dlanhs (characterNORM, integerN, double precision, dimension( lda, * )A, integerLDA, double precision, dimension( *…
dlangt.f – Synopsis Functions/Subroutines DOUBLE PRECISION function dlangt (NORM, N, DL, D, DU) DLANGT returns the value of the 1-norm, Frobenius norm, infinity-norm, or the largest absolute value of any element of a general tridiagonal matrix. Function/Subroutine Documentation DOUBLE PRECISION function dlangt (characterNORM, integerN, double precision, dimension( * )DL, double precision, dimension( * )D, double…
dlange.f – Synopsis Functions/Subroutines DOUBLE PRECISION function dlange (NORM, M, N, A, LDA, WORK) DLANGE returns the value of the 1-norm, Frobenius norm, infinity-norm, or the largest absolute value of any element of a general rectangular matrix. Function/Subroutine Documentation DOUBLE PRECISION function dlange (characterNORM, integerM, integerN, double precision, dimension( lda, * )A, integerLDA, double precision,…
dlangb.f – Synopsis Functions/Subroutines DOUBLE PRECISION function dlangb (NORM, N, KL, KU, AB, LDAB, WORK) DLANGB returns the value of the 1-norm, Frobenius norm, infinity-norm, or the largest absolute value of any element of general band matrix. Function/Subroutine Documentation DOUBLE PRECISION function dlangb (characterNORM, integerN, integerKL, integerKU, double precision, dimension( ldab, * )AB, integerLDAB, double…
dlaneg.f – Synopsis Functions/Subroutines INTEGER function dlaneg (N, D, LLD, SIGMA, PIVMIN, R) DLANEG computes the Sturm count. Function/Subroutine Documentation INTEGER function dlaneg (integerN, double precision, dimension( * )D, double precision, dimension( * )LLD, double precisionSIGMA, double precisionPIVMIN, integerR) DLANEG computes the Sturm count. Purpose: DLANEG computes the Sturm count, the number of negative pivots…
dlamrg.f – Synopsis Functions/Subroutines subroutine dlamrg (N1, N2, A, DTRD1, DTRD2, INDEX) DLAMRG creates a permutation list to merge the entries of two independently sorted sets into a single set sorted in ascending order. Function/Subroutine Documentation subroutine dlamrg (integerN1, integerN2, double precision, dimension( * )A, integerDTRD1, integerDTRD2, integer, dimension( * )INDEX) DLAMRG creates a permutation…
NAME dlamchtst.f – SYNOPSIS Functions/Subroutines program __dlamchtst.f__ DLAMCHTST Function/Subroutine Documentation program __dlamchtst.f__ () DLAMCHTST Author: Univ. of Tennessee Univ. of California Berkeley Univ. of Colorado Denver NAG Ltd. Date: November 2011 Definition at line 35 of file dlamchtst.f. Author Generated automatically by Doxygen for LAPACK from the source code. Index
dlamchtst.f – Synopsis Functions/Subroutines program __dlamchtst.f__ DLAMCHTST Function/Subroutine Documentation program __dlamchtst.f__ () DLAMCHTST Author: Univ. of Tennessee Univ. of California Berkeley Univ. of Colorado Denver NAG Ltd. Date: November 2011 Definition at line 35 of file dlamchtst.f. Author Generated automatically by Doxygen for LAPACK from the source code.
NAME dlamchf77.f – SYNOPSIS Functions/Subroutines DOUBLE PRECISION function dlamch (CMACH) DLAMCHF77 deprecated subroutine dlamc1 (BETA, T, RND, IEEE1) DLAMC1 subroutine dlamc2 (BETA, T, RND, EPS, EMIN, RMIN, EMAX, RMAX) DLAMC2 DOUBLE PRECISION function dlamc3 (A, B) DLAMC3 subroutine dlamc4 (EMIN, START, BASE) DLAMC4 subroutine dlamc5 (BETA, P, EMIN, IEEE, EMAX, RMAX) DLAMC5 Function/Subroutine Documentation subroutine…
dlamchf77.f – Synopsis Functions/Subroutines DOUBLE PRECISION function dlamch (CMACH) DLAMCHF77 deprecated subroutine dlamc1 (BETA, T, RND, IEEE1) DLAMC1 subroutine dlamc2 (BETA, T, RND, EPS, EMIN, RMIN, EMAX, RMAX) DLAMC2 DOUBLE PRECISION function dlamc3 (A, B) DLAMC3 subroutine dlamc4 (EMIN, START, BASE) DLAMC4 subroutine dlamc5 (BETA, P, EMIN, IEEE, EMAX, RMAX) DLAMC5 Function/Subroutine Documentation subroutine dlamc1…
dlamch.f – Synopsis Functions/Subroutines DOUBLE PRECISION function dlamch (CMACH) DLAMCH DOUBLE PRECISION function dlamc3 (A, B) DLAMC3 Function/Subroutine Documentation DOUBLE PRECISION function dlamc3 (double precisionA, double precisionB) DLAMC3 Purpose: DLAMC3 is intended to force A and B to be stored prior to doing the addition of A and B , for use in situations where…
dlalsd.f – Synopsis Functions/Subroutines subroutine dlalsd (UPLO, SMLSIZ, N, NRHS, D, E, B, LDB, RCOND, RANK, WORK, IWORK, INFO) DLALSD uses the singular value decomposition of A to solve the least squares problem. Function/Subroutine Documentation subroutine dlalsd (characterUPLO, integerSMLSIZ, integerN, integerNRHS, double precision, dimension( * )D, double precision, dimension( * )E, double precision, dimension( ldb,…
dlalsa.f – Synopsis Functions/Subroutines subroutine dlalsa (ICOMPQ, SMLSIZ, N, NRHS, B, LDB, BX, LDBX, U, LDU, VT, K, DIFL, DIFR, Z, POLES, GIVPTR, GIVCOL, LDGCOL, PERM, GIVNUM, C, S, WORK, IWORK, INFO) DLALSA computes the SVD of the coefficient matrix in compact form. Used by sgelsd. Function/Subroutine Documentation subroutine dlalsa (integerICOMPQ, integerSMLSIZ, integerN, integerNRHS, double…
dlals0.f – Synopsis Functions/Subroutines subroutine dlals0 (ICOMPQ, NL, NR, SQRE, NRHS, B, LDB, BX, LDBX, PERM, GIVPTR, GIVCOL, LDGCOL, GIVNUM, LDGNUM, POLES, DIFL, DIFR, Z, K, C, S, WORK, INFO) DLALS0 applies back multiplying factors in solving the least squares problem using divide and conquer SVD approach. Used by sgelsd. Function/Subroutine Documentation subroutine dlals0 (integerICOMPQ,…
dlaln2.f – Synopsis Functions/Subroutines subroutine dlaln2 (LTRANS, NA, NW, SMIN, CA, A, LDA, D1, D2, B, LDB, WR, WI, X, LDX, SCALE, XNORM, INFO) DLALN2 solves a 1-by-1 or 2-by-2 linear system of equations of the specified form. Function/Subroutine Documentation subroutine dlaln2 (logicalLTRANS, integerNA, integerNW, double precisionSMIN, double precisionCA, double precision, dimension( lda, * )A,…
dlaisnan.f – Synopsis Functions/Subroutines LOGICAL function dlaisnan (DIN1, DIN2) DLAISNAN tests input for NaN by comparing two arguments for inequality. Function/Subroutine Documentation LOGICAL function dlaisnan (double precisionDIN1, double precisionDIN2) DLAISNAN tests input for NaN by comparing two arguments for inequality. Purpose: This routine is not for general use. It exists solely to avoid over-optimization in…
dlaic1.f – Synopsis Functions/Subroutines subroutine dlaic1 (JOB, J, X, SEST, W, GAMMA, SESTPR, S, C) DLAIC1 applies one step of incremental condition estimation. Function/Subroutine Documentation subroutine dlaic1 (integerJOB, integerJ, double precision, dimension( j )X, double precisionSEST, double precision, dimension( j )W, double precisionGAMMA, double precisionSESTPR, double precisionS, double precisionC) DLAIC1 applies one step of incremental…
dlahrd.f – Synopsis Functions/Subroutines subroutine dlahrd (N, K, NB, A, LDA, TAU, T, LDT, Y, LDY) DLAHRD reduces the first nb columns of a general rectangular matrix A so that elements below the k-th subdiagonal are zero, and returns auxiliary matrices which are needed to apply the transformation to the unreduced part of A. Function/Subroutine…
dlahr2.f – Synopsis Functions/Subroutines subroutine dlahr2 (N, K, NB, A, LDA, TAU, T, LDT, Y, LDY) DLAHR2 reduces the specified number of first columns of a general rectangular matrix A so that elements below the specified subdiagonal are zero, and returns auxiliary matrices which are needed to apply the transformation to the unreduced part of…
dlahqr.f – Synopsis Functions/Subroutines subroutine dlahqr (WANTT, WANTZ, N, ILO, IHI, H, LDH, WR, WI, ILOZ, IHIZ, Z, LDZ, INFO) DLAHQR computes the eigenvalues and Schur factorization of an upper Hessenberg matrix, using the double-shift/single-shift QR algorithm. Function/Subroutine Documentation subroutine dlahqr (logicalWANTT, logicalWANTZ, integerN, integerILO, integerIHI, double precision, dimension( ldh, * )H, integerLDH, double precision,…