Section 3: library functions
dptsv.f – SynopsisFunctions/Subroutinessubroutine dptsv (N, NRHS, D, E, B, LDB, INFO) DPTSV computes the solution to system of linear equations A * X = B for PT matrices Function/Subroutine Documentationsubroutine dptsv (integerN, integerNRHS, double precision, dimension( * )D, double precision, dimension( * )E, double precision, dimension( ldb, * )B, integerLDB, integerINFO) DPTSV computes the solution…
dptrfs.f – SynopsisFunctions/Subroutinessubroutine dptrfs (N, NRHS, D, E, DF, EF, B, LDB, X, LDX, FERR, BERR, WORK, INFO) DPTRFS Function/Subroutine Documentationsubroutine dptrfs (integerN, integerNRHS, double precision, dimension( * )D, double precision, dimension( * )E, double precision, dimension( * )DF, double precision, dimension( * )EF, double precision, dimension( ldb, * )B, integerLDB, double precision, dimension( ldx,…
dpteqr.f – SynopsisFunctions/Subroutinessubroutine dpteqr (COMPZ, N, D, E, Z, LDZ, WORK, INFO) DPTEQR Function/Subroutine Documentationsubroutine dpteqr (characterCOMPZ, integerN, double precision, dimension( * )D, double precision, dimension( * )E, double precision, dimension( ldz, * )Z, integerLDZ, double precision, dimension( * )WORK, integerINFO)DPTEQR Purpose: DPTEQR computes all eigenvalues and, optionally, eigenvectors of a symmetric positive definite tridiagonal…
dptcon.f – SynopsisFunctions/Subroutinessubroutine dptcon (N, D, E, ANORM, RCOND, WORK, INFO) DPTCON Function/Subroutine Documentationsubroutine dptcon (integerN, double precision, dimension( * )D, double precision, dimension( * )E, double precisionANORM, double precisionRCOND, double precision, dimension( * )WORK, integerINFO)DPTCON Purpose: DPTCON computes the reciprocal of the condition number (in the 1-norm) of a real symmetric positive definite tridiagonal…
dpstrf.f – SynopsisFunctions/Subroutinessubroutine dpstrf (UPLO, N, A, LDA, PIV, RANK, TOL, WORK, INFO) DPSTRF Function/Subroutine Documentationsubroutine dpstrf (characterUPLO, integerN, double precision, dimension( lda, * )A, integerLDA, integer, dimension( n )PIV, integerRANK, double precisionTOL, double precision, dimension( 2*n )WORK, integerINFO)DPSTRF Purpose: DPSTRF computes the Cholesky factorization with complete pivoting of a real symmetric positive semidefinite matrix…
dpstf2.f – SynopsisFunctions/Subroutinessubroutine dpstf2 (UPLO, N, A, LDA, PIV, RANK, TOL, WORK, INFO) DPSTF2 computes the Cholesky factorization with complete pivoting of a real symmetric or complex Hermitian positive semi-definite matrix. Function/Subroutine Documentationsubroutine dpstf2 (characterUPLO, integerN, double precision, dimension( lda, * )A, integerLDA, integer, dimension( n )PIV, integerRANK, double precisionTOL, double precision, dimension( 2*n )WORK,…
printf, fprintf, dprintf, sprintf, snprintf, vprintf, vfprintf, vdprintf, vsprintf, vsnprintf – formatted output conversion Synopsis#include <stdio.h> int printf(const char *format, …); int fprintf(FILE *stream, const char *format, …); int dprintf(int fd, const char *format, …); int sprintf(char *str, const char *format, …); int snprintf(char *str, size_t size, const char *format, …); #include <stdarg.h> int vprintf(const…
dpptrs.f – SynopsisFunctions/Subroutinessubroutine dpptrs (UPLO, N, NRHS, AP, B, LDB, INFO) DPPTRS Function/Subroutine Documentationsubroutine dpptrs (characterUPLO, integerN, integerNRHS, double precision, dimension( * )AP, double precision, dimension( ldb, * )B, integerLDB, integerINFO)DPPTRS Purpose: DPPTRS solves a system of linear equations A*X = B with a symmetric positive definite matrix A in packed storage using the Cholesky…
dpptri.f – SynopsisFunctions/Subroutinessubroutine dpptri (UPLO, N, AP, INFO) DPPTRI Function/Subroutine Documentationsubroutine dpptri (characterUPLO, integerN, double precision, dimension( * )AP, integerINFO)DPPTRI Purpose: DPPTRI computes the inverse of a real symmetric positive definite matrix A using the Cholesky factorization A = U**T*U or A = L*L**T computed by DPPTRF. Parameters: UPLO UPLO is CHARACTER*1 = ‘U’: Upper…
dpptrf.f – SynopsisFunctions/Subroutinessubroutine dpptrf (UPLO, N, AP, INFO) DPPTRF Function/Subroutine Documentationsubroutine dpptrf (characterUPLO, integerN, double precision, dimension( * )AP, integerINFO)DPPTRF Purpose: DPPTRF computes the Cholesky factorization of a real symmetric positive definite matrix A stored in packed format. The factorization has the form A = U**T * U, if UPLO = ‘U’, or A =…
dppsvx.f – SynopsisFunctions/Subroutinessubroutine dppsvx (FACT, UPLO, N, NRHS, AP, AFP, EQUED, S, B, LDB, X, LDX, RCOND, FERR, BERR, WORK, IWORK, INFO) DPPSVX computes the solution to system of linear equations A * X = B for OTHER matrices Function/Subroutine Documentationsubroutine dppsvx (characterFACT, characterUPLO, integerN, integerNRHS, double precision, dimension( * )AP, double precision, dimension( *…
dppsv.f – SynopsisFunctions/Subroutinessubroutine dppsv (UPLO, N, NRHS, AP, B, LDB, INFO) DPPSV computes the solution to system of linear equations A * X = B for OTHER matrices Function/Subroutine Documentationsubroutine dppsv (characterUPLO, integerN, integerNRHS, double precision, dimension( * )AP, double precision, dimension( ldb, * )B, integerLDB, integerINFO) DPPSV computes the solution to system of linear…
dpprfs.f – SynopsisFunctions/Subroutinessubroutine dpprfs (UPLO, N, NRHS, AP, AFP, B, LDB, X, LDX, FERR, BERR, WORK, IWORK, INFO) DPPRFS Function/Subroutine Documentationsubroutine dpprfs (characterUPLO, integerN, integerNRHS, double precision, dimension( * )AP, double precision, dimension( * )AFP, double precision, dimension( ldb, * )B, integerLDB, double precision, dimension( ldx, * )X, integerLDX, double precision, dimension( * )FERR, double…
dppequ.f – SynopsisFunctions/Subroutinessubroutine dppequ (UPLO, N, AP, S, SCOND, AMAX, INFO) DPPEQU Function/Subroutine Documentationsubroutine dppequ (characterUPLO, integerN, double precision, dimension( * )AP, double precision, dimension( * )S, double precisionSCOND, double precisionAMAX, integerINFO)DPPEQU Purpose: DPPEQU computes row and column scalings intended to equilibrate a symmetric positive definite matrix A in packed storage and reduce its condition…
dppcon.f – SynopsisFunctions/Subroutinessubroutine dppcon (UPLO, N, AP, ANORM, RCOND, WORK, IWORK, INFO) DPPCON Function/Subroutine Documentationsubroutine dppcon (characterUPLO, integerN, double precision, dimension( * )AP, double precisionANORM, double precisionRCOND, double precision, dimension( * )WORK, integer, dimension( * )IWORK, integerINFO)DPPCON Purpose: DPPCON estimates the reciprocal of the condition number (in the 1-norm) of a real symmetric positive definite…
dpotrs.f – SynopsisFunctions/Subroutinessubroutine dpotrs (UPLO, N, NRHS, A, LDA, B, LDB, INFO) DPOTRS Function/Subroutine Documentationsubroutine dpotrs (characterUPLO, integerN, integerNRHS, double precision, dimension( lda, * )A, integerLDA, double precision, dimension( ldb, * )B, integerLDB, integerINFO)DPOTRS Purpose: DPOTRS solves a system of linear equations A*X = B with a symmetric positive definite matrix A using the Cholesky…
dpotri.f – SynopsisFunctions/Subroutinessubroutine dpotri (UPLO, N, A, LDA, INFO) DPOTRI Function/Subroutine Documentationsubroutine dpotri (characterUPLO, integerN, double precision, dimension( lda, * )A, integerLDA, integerINFO)DPOTRI Purpose: DPOTRI computes the inverse of a real symmetric positive definite matrix A using the Cholesky factorization A = U**T*U or A = L*L**T computed by DPOTRF. Parameters: UPLO UPLO is CHARACTER*1…
dpotrf.f – SynopsisFunctions/Subroutinessubroutine dpotrf (UPLO, N, A, LDA, INFO) DPOTRF Function/Subroutine Documentationsubroutine dpotrf (characterUPLO, integerN, double precision, dimension( lda, * )A, integerLDA, integerINFO)DPOTRF Purpose: DPOTRF computes the Cholesky factorization of a real symmetric positive definite matrix A. The factorization has the form A = U**T * U, if UPLO = ‘U’, or A = L…
dpotf2.f – SynopsisFunctions/Subroutinessubroutine dpotf2 (UPLO, N, A, LDA, INFO) DPOTF2 computes the Cholesky factorization of a symmetric/Hermitian positive definite matrix (unblocked algorithm). Function/Subroutine Documentationsubroutine dpotf2 (characterUPLO, integerN, double precision, dimension( lda, * )A, integerLDA, integerINFO)DPOTF2 computes the Cholesky factorization of a symmetric/Hermitian positive definite matrix (unblocked algorithm). Purpose: DPOTF2 computes the Cholesky factorization of a…
dposvxx.f – SynopsisFunctions/Subroutinessubroutine dposvxx (FACT, UPLO, N, NRHS, A, LDA, AF, LDAF, EQUED, S, B, LDB, X, LDX, RCOND, RPVGRW, BERR, N_ERR_BNDS, ERR_BNDS_NORM, ERR_BNDS_COMP, NPARAMS, PARAMS, WORK, IWORK, INFO) DPOSVXX computes the solution to system of linear equations A * X = B for PO matrices Function/Subroutine Documentationsubroutine dposvxx (characterFACT, characterUPLO, integerN, integerNRHS, double precision,…