The Linux Manuals (man pages) document is an important part of Linux documents. Linux Manuals are organized as several sections. Each section has a group of commands for a specific area in Linux usage, administration or development.
srscl.f – SynopsisFunctions/Subroutinessubroutine srscl (N, SA, SX, INCX) SRSCL multiplies a vector by the reciprocal of a real scalar. Function/Subroutine Documentationsubroutine srscl (integerN, realSA, real, dimension( * )SX, integerINCX)SRSCL multiplies a vector by the reciprocal of a real scalar. Purpose: SRSCL multiplies an n-element real vector x by the real scalar 1/a. This is done…
srotmg.f – SynopsisFunctions/Subroutinessubroutine srotmg (SD1, SD2, SX1, SY1, SPARAM) SROTMG Function/Subroutine Documentationsubroutine srotmg (realSD1, realSD2, realSX1, realSY1, real, dimension(5)SPARAM)SROTMG Purpose: CONSTRUCT THE MODIFIED GIVENS TRANSFORMATION MATRIX H WHICH ZEROS THE SECOND COMPONENT OF THE 2-VECTOR (SQRT(SD1)*SX1,SQRT(SD2)*> SY2)**T. WITH SPARAM(1)=SFLAG, H HAS ONE OF THE FOLLOWING FORMS.. SFLAG=-1.E0 SFLAG=0.E0 SFLAG=1.E0 SFLAG=-2.E0 (SH11 SH12) (1.E0 SH12) (SH11…
srotm.f – SynopsisFunctions/Subroutinessubroutine srotm (N, SX, INCX, SY, INCY, SPARAM) SROTM Function/Subroutine Documentationsubroutine srotm (integerN, real, dimension(*)SX, integerINCX, real, dimension(*)SY, integerINCY, real, dimension(5)SPARAM)SROTM Purpose: APPLY THE MODIFIED GIVENS TRANSFORMATION, H, TO THE 2 BY N MATRIX (SX**T) , WHERE **T INDICATES TRANSPOSE. THE ELEMENTS OF SX ARE IN (SX**T) SX(LX+I*INCX), I = 0 TO N-1,…
srotg.f – SynopsisFunctions/Subroutinessubroutine srotg (SA, SB, C, S) SROTG Function/Subroutine Documentationsubroutine srotg (realSA, realSB, realC, realS)SROTG Purpose: SROTG construct givens plane rotation. Author: Univ. of Tennessee Univ. of California Berkeley Univ. of Colorado Denver NAG Ltd. Date: November 2011 Further Details: jack dongarra, linpack, 3/11/78. Definition at line 47 of file srotg.f. AuthorGenerated automatically by…
srot.f – SynopsisFunctions/Subroutinessubroutine srot (N, SX, INCX, SY, INCY, C, S) SROT Function/Subroutine Documentationsubroutine srot (integerN, real, dimension(*)SX, integerINCX, real, dimension(*)SY, integerINCY, realC, realS)SROT Purpose: applies a plane rotation. Author: Univ. of Tennessee Univ. of California Berkeley Univ. of Colorado Denver NAG Ltd. Date: November 2011 Further Details: jack dongarra, linpack, 3/11/78. modified 12/3/93, array(1)…
xerbla_array.f – SynopsisFunctions/Subroutinessubroutine xerbla_array (SRNAME_ARRAY, SRNAME_LEN, INFO) XERBLA_ARRAY Function/Subroutine Documentationsubroutine xerbla_array (character(1), dimension(srname_len)SRNAME_ARRAY, integerSRNAME_LEN, integerINFO)XERBLA_ARRAY Purpose: XERBLA_ARRAY assists other languages in calling XERBLA, the LAPACK and BLAS error handler. Rather than taking a Fortran string argument as the function’s name, XERBLA_ARRAY takes an array of single characters along with the array’s length. XERBLA_ARRAY then copies…
xerbla_array.f – SynopsisFunctions/Subroutinessubroutine xerbla_array (SRNAME_ARRAY, SRNAME_LEN, INFO) XERBLA_ARRAY Function/Subroutine Documentationsubroutine xerbla_array (character(1), dimension(srname_len)SRNAME_ARRAY, integerSRNAME_LEN, integerINFO)XERBLA_ARRAY Purpose: XERBLA_ARRAY assists other languages in calling XERBLA, the LAPACK and BLAS error handler. Rather than taking a Fortran string argument as the function’s name, XERBLA_ARRAY takes an array of single characters along with the array’s length. XERBLA_ARRAY then copies…
xerbla.f – SynopsisFunctions/Subroutinessubroutine xerbla (SRNAME, INFO) XERBLA Function/Subroutine Documentationsubroutine xerbla (character*(*)SRNAME, integerINFO)XERBLA Purpose: XERBLA is an error handler for the LAPACK routines. It is called by an LAPACK routine if an input parameter has an invalid value. A message is printed and execution stops. Installers may consider modifying the STOP statement in order to call…
xerbla.f – SynopsisFunctions/Subroutinessubroutine xerbla (SRNAME, INFO) XERBLA Function/Subroutine Documentationsubroutine xerbla (character*(*)SRNAME, integerINFO)XERBLA Purpose: XERBLA is an error handler for the LAPACK routines. It is called by an LAPACK routine if an input parameter has an invalid value. A message is printed and execution stops. Installers may consider modifying the STOP statement in order to call…
ilaver.f – SynopsisFunctions/Subroutinessubroutine ilaver (VERS_MAJOR, VERS_MINOR, VERS_PATCH) ILAVER returns the LAPACK version. Function/Subroutine Documentationsubroutine ilaver (integerVERS_MAJOR, integerVERS_MINOR, integerVERS_PATCH)ILAVER returns the LAPACK version. Purpose: This subroutine returns the LAPACK version. Parameters: VERS_MAJOR return the lapack major version VERS_MINOR return the lapack minor version from the major version VERS_PATCH return the lapack patch version from the minor…
ilaver.f – SynopsisFunctions/Subroutinessubroutine ilaver (VERS_MAJOR, VERS_MINOR, VERS_PATCH) ILAVER returns the LAPACK version. Function/Subroutine Documentationsubroutine ilaver (integerVERS_MAJOR, integerVERS_MINOR, integerVERS_PATCH)ILAVER returns the LAPACK version. Purpose: This subroutine returns the LAPACK version. Parameters: VERS_MAJOR return the lapack major version VERS_MINOR return the lapack minor version from the major version VERS_PATCH return the lapack patch version from the minor…
sptts2.f – SynopsisFunctions/Subroutinessubroutine sptts2 (N, NRHS, D, E, B, LDB) SPTTS2 solves a tridiagonal system of the form AX=B using the L D LH factorization computed by spttrf. Function/Subroutine Documentationsubroutine sptts2 (integerN, integerNRHS, real, dimension( * )D, real, dimension( * )E, real, dimension( ldb, * )B, integerLDB)SPTTS2 solves a tridiagonal system of the form AX=B…
spttrs.f – SynopsisFunctions/Subroutinessubroutine spttrs (N, NRHS, D, E, B, LDB, INFO) SPTTRS Function/Subroutine Documentationsubroutine spttrs (integerN, integerNRHS, real, dimension( * )D, real, dimension( * )E, real, dimension( ldb, * )B, integerLDB, integerINFO)SPTTRS Purpose: SPTTRS solves a tridiagonal system of the form A * X = B using the L*D*L**T factorization of A computed by SPTTRF….
spttrf.f – SynopsisFunctions/Subroutinessubroutine spttrf (N, D, E, INFO) SPTTRF Function/Subroutine Documentationsubroutine spttrf (integerN, real, dimension( * )D, real, dimension( * )E, integerINFO)SPTTRF Purpose: SPTTRF computes the L*D*L**T factorization of a real symmetric positive definite tridiagonal matrix A. The factorization may also be regarded as having the form A = U**T*D*U. Parameters: N N is INTEGER…
sptsvx.f – SynopsisFunctions/Subroutinessubroutine sptsvx (FACT, N, NRHS, D, E, DF, EF, B, LDB, X, LDX, RCOND, FERR, BERR, WORK, INFO) SPTSVX computes the solution to system of linear equations A * X = B for PT matrices Function/Subroutine Documentationsubroutine sptsvx (characterFACT, integerN, integerNRHS, real, dimension( * )D, real, dimension( * )E, real, dimension( * )DF,…
sptsv.f – SynopsisFunctions/Subroutinessubroutine sptsv (N, NRHS, D, E, B, LDB, INFO) SPTSV computes the solution to system of linear equations A * X = B for PT matrices Function/Subroutine Documentationsubroutine sptsv (integerN, integerNRHS, real, dimension( * )D, real, dimension( * )E, real, dimension( ldb, * )B, integerLDB, integerINFO) SPTSV computes the solution to system of…
sptrfs.f – SynopsisFunctions/Subroutinessubroutine sptrfs (N, NRHS, D, E, DF, EF, B, LDB, X, LDX, FERR, BERR, WORK, INFO) SPTRFS Function/Subroutine Documentationsubroutine sptrfs (integerN, integerNRHS, real, dimension( * )D, real, dimension( * )E, real, dimension( * )DF, real, dimension( * )EF, real, dimension( ldb, * )B, integerLDB, real, dimension( ldx, * )X, integerLDX, real, dimension( *…
spteqr.f – SynopsisFunctions/Subroutinessubroutine spteqr (COMPZ, N, D, E, Z, LDZ, WORK, INFO) SPTEQR Function/Subroutine Documentationsubroutine spteqr (characterCOMPZ, integerN, real, dimension( * )D, real, dimension( * )E, real, dimension( ldz, * )Z, integerLDZ, real, dimension( * )WORK, integerINFO)SPTEQR Purpose: SPTEQR computes all eigenvalues and, optionally, eigenvectors of a symmetric positive definite tridiagonal matrix by first factoring…
sptcon.f – SynopsisFunctions/Subroutinessubroutine sptcon (N, D, E, ANORM, RCOND, WORK, INFO) SPTCON Function/Subroutine Documentationsubroutine sptcon (integerN, real, dimension( * )D, real, dimension( * )E, realANORM, realRCOND, real, dimension( * )WORK, integerINFO)SPTCON Purpose: SPTCON computes the reciprocal of the condition number (in the 1-norm) of a real symmetric positive definite tridiagonal matrix using the factorization A…
spstrf.f – SynopsisFunctions/Subroutinessubroutine spstrf (UPLO, N, A, LDA, PIV, RANK, TOL, WORK, INFO) SPSTRF Function/Subroutine Documentationsubroutine spstrf (characterUPLO, integerN, real, dimension( lda, * )A, integerLDA, integer, dimension( n )PIV, integerRANK, realTOL, real, dimension( 2*n )WORK, integerINFO)SPSTRF Purpose: SPSTRF computes the Cholesky factorization with complete pivoting of a real symmetric positive semidefinite matrix A. The factorization…