Linux Manuals

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.

Linux Manuals | Linux Manuals session 3

CLA_GERFSX_EXTENDED (3) Linux Manual Page
ByLinux Manual Apr 20, 2026May 20, 2026

NAME cla_gerfsx_extended.f – SYNOPSIS Functions/Subroutines subroutine cla_gerfsx_extended (PREC_TYPE, TRANS_TYPE, N, NRHS, A, LDA, AF, LDAF, IPIV, COLEQU, C, B, LDB, Y, LDY, BERR_OUT, N_NORMS, ERRS_N, ERRS_C, RES, AYB, DY, Y_TAIL, RCOND, ITHRESH, RTHRESH, DZ_UB, IGNORE_CWISE, INFO) CLA_GERFSX_EXTENDED Function/Subroutine Documentation subroutine cla_gerfsx_extended (integerPREC_TYPE, integerTRANS_TYPE, integerN, integerNRHS, complex, dimension( lda, * )A, integerLDA, complex, dimension( ldaf, *…

Read More CLA_GERFSX_EXTENDED (3) Linux Manual Page
Linux Manuals | Linux Manuals session 3

CLA_GERCOND_X (3) Linux Manual Page
ByLinux Manual Apr 20, 2026May 20, 2026

NAME cla_gercond_x.f – SYNOPSIS Functions/Subroutines REAL function cla_gercond_x (TRANS, N, A, LDA, AF, LDAF, IPIV, X, INFO, WORK, RWORK) CLA_GERCOND_X computes the infinity norm condition number of op(A)*diag(x) for general matrices. Function/Subroutine Documentation REAL function cla_gercond_x (characterTRANS, integerN, complex, dimension( lda, * )A, integerLDA, complex, dimension( ldaf, * )AF, integerLDAF, integer, dimension( * )IPIV, complex,…

Read More CLA_GERCOND_X (3) Linux Manual Page
Linux Manuals | Linux Manuals session 3

CLA_GERCOND_C (3) Linux Manual Page
ByLinux Manual Apr 20, 2026May 20, 2026

NAME cla_gercond_c.f – SYNOPSIS Functions/Subroutines REAL function cla_gercond_c (TRANS, N, A, LDA, AF, LDAF, IPIV, C, CAPPLY, INFO, WORK, RWORK) CLA_GERCOND_C computes the infinity norm condition number of op(A)*inv(diag(c)) for general matrices. Function/Subroutine Documentation REAL function cla_gercond_c (characterTRANS, integerN, complex, dimension( lda, * )A, integerLDA, complex, dimension( ldaf, * )AF, integerLDAF, integer, dimension( * )IPIV,…

Read More CLA_GERCOND_C (3) Linux Manual Page
Linux Manuals | Linux Manuals session 3

CLA_GEAMV (3) Linux Manual Page
ByLinux Manual Apr 20, 2026May 20, 2026

NAME cla_geamv.f – SYNOPSIS Functions/Subroutines subroutine cla_geamv (TRANS, M, N, ALPHA, A, LDA, X, INCX, BETA, Y, INCY) CLA_GEAMV computes a matrix-vector product using a general matrix to calculate error bounds. Function/Subroutine Documentation subroutine cla_geamv (integerTRANS, integerM, integerN, realALPHA, complex, dimension( lda, * )A, integerLDA, complex, dimension( * )X, integerINCX, realBETA, real, dimension( * )Y,…

Read More CLA_GEAMV (3) Linux Manual Page
Linux Manuals | Linux Manuals session 3

CLA_GBRPVGRW (3) Linux Manual Page
ByLinux Manual Apr 20, 2026May 20, 2026

NAME cla_gbrpvgrw.f – SYNOPSIS Functions/Subroutines REAL function cla_gbrpvgrw (N, KL, KU, NCOLS, AB, LDAB, AFB, LDAFB) CLA_GBRPVGRW computes the reciprocal pivot growth factor norm(A)/norm(U) for a general banded matrix. Function/Subroutine Documentation REAL function cla_gbrpvgrw (integerN, integerKL, integerKU, integerNCOLS, complex, dimension( ldab, * )AB, integerLDAB, complex, dimension( ldafb, * )AFB, integerLDAFB) CLA_GBRPVGRW computes the reciprocal pivot…

Read More CLA_GBRPVGRW (3) Linux Manual Page
Linux Manuals | Linux Manuals session 3

CLA_GBRFSX_EXTENDED (3) Linux Manual Page
ByLinux Manual Apr 20, 2026May 20, 2026

NAME cla_gbrfsx_extended.f – SYNOPSIS Functions/Subroutines subroutine cla_gbrfsx_extended (PREC_TYPE, TRANS_TYPE, N, KL, KU, NRHS, AB, LDAB, AFB, LDAFB, IPIV, COLEQU, C, B, LDB, Y, LDY, BERR_OUT, N_NORMS, ERR_BNDS_NORM, ERR_BNDS_COMP, RES, AYB, DY, Y_TAIL, RCOND, ITHRESH, RTHRESH, DZ_UB, IGNORE_CWISE, INFO) CLA_GBRFSX_EXTENDED improves the computed solution to a system of linear equations for general banded matrices by performing…

Read More CLA_GBRFSX_EXTENDED (3) Linux Manual Page
Linux Manuals | Linux Manuals session 3

CLA_GBRCOND_X (3) Linux Manual Page
ByLinux Manual Apr 20, 2026May 20, 2026

NAME cla_gbrcond_x.f – SYNOPSIS Functions/Subroutines REAL function cla_gbrcond_x (TRANS, N, KL, KU, AB, LDAB, AFB, LDAFB, IPIV, X, INFO, WORK, RWORK) CLA_GBRCOND_X computes the infinity norm condition number of op(A)*diag(x) for general banded matrices. Function/Subroutine Documentation REAL function cla_gbrcond_x (characterTRANS, integerN, integerKL, integerKU, complex, dimension( ldab, * )AB, integerLDAB, complex, dimension( ldafb, * )AFB, integerLDAFB,…

Read More CLA_GBRCOND_X (3) Linux Manual Page
Linux Manuals | Linux Manuals session 3

CLA_GBRCOND_C (3) Linux Manual Page
ByLinux Manual Apr 20, 2026May 20, 2026

NAME cla_gbrcond_c.f – SYNOPSIS Functions/Subroutines REAL function cla_gbrcond_c (TRANS, N, KL, KU, AB, LDAB, AFB, LDAFB, IPIV, C, CAPPLY, INFO, WORK, RWORK) CLA_GBRCOND_C computes the infinity norm condition number of op(A)*inv(diag(c)) for general banded matrices. Function/Subroutine Documentation REAL function cla_gbrcond_c (characterTRANS, integerN, integerKL, integerKU, complex, dimension( ldab, * )AB, integerLDAB, complex, dimension( ldafb, * )AFB,…

Read More CLA_GBRCOND_C (3) Linux Manual Page
Linux Manuals | Linux Manuals session 3

CLA_GBAMV (3) Linux Manual Page
ByLinux Manual Apr 20, 2026May 20, 2026

NAME cla_gbamv.f – SYNOPSIS Functions/Subroutines subroutine cla_gbamv (TRANS, M, N, KL, KU, ALPHA, AB, LDAB, X, INCX, BETA, Y, INCY) CLA_GBAMV performs a matrix-vector operation to calculate error bounds. Function/Subroutine Documentation subroutine cla_gbamv (integerTRANS, integerM, integerN, integerKL, integerKU, realALPHA, complex, dimension( ldab, * )AB, integerLDAB, complex, dimension( * )X, integerINCX, realBETA, real, dimension( * )Y,…

Read More CLA_GBAMV (3) Linux Manual Page
Linux Manuals | Linux Manuals session 3

CLAUUM (3) Linux Manual Page
ByLinux Manual Apr 20, 2026May 20, 2026

NAME clauum.f – SYNOPSIS Functions/Subroutines subroutine clauum (UPLO, N, A, LDA, INFO) CLAUUM computes the product UUH or LHL, where U and L are upper or lower triangular matrices (blocked algorithm). Function/Subroutine Documentation subroutine clauum (characterUPLO, integerN, complex, dimension( lda, * )A, integerLDA, integerINFO) CLAUUM computes the product UUH or LHL, where U and L…

Read More CLAUUM (3) Linux Manual Page
Linux Manuals | Linux Manuals session 3

CLAUU2 (3) Linux Manual Page
ByLinux Manual Apr 20, 2026May 20, 2026

NAME clauu2.f – SYNOPSIS Functions/Subroutines subroutine clauu2 (UPLO, N, A, LDA, INFO) CLAUU2 computes the product UUH or LHL, where U and L are upper or lower triangular matrices (unblocked algorithm). Function/Subroutine Documentation subroutine clauu2 (characterUPLO, integerN, complex, dimension( lda, * )A, integerLDA, integerINFO) CLAUU2 computes the product UUH or LHL, where U and L…

Read More CLAUU2 (3) Linux Manual Page
Linux Manuals | Linux Manuals session 3

CLATZM (3) Linux Manual Page
ByLinux Manual Apr 20, 2026May 20, 2026

NAME clatzm.f – SYNOPSIS Functions/Subroutines subroutine clatzm (SIDE, M, N, V, INCV, TAU, C1, C2, LDC, WORK) CLATZM Function/Subroutine Documentation subroutine clatzm (characterSIDE, integerM, integerN, complex, dimension( * )V, integerINCV, complexTAU, complex, dimension( ldc, * )C1, complex, dimension( ldc, * )C2, integerLDC, complex, dimension( * )WORK) CLATZM Purpose: This routine is deprecated and has been…

Read More CLATZM (3) Linux Manual Page
Linux Manuals | Linux Manuals session 3

CLATRZ (3) Linux Manual Page
ByLinux Manual Apr 20, 2026May 20, 2026

NAME clatrz.f – SYNOPSIS Functions/Subroutines subroutine clatrz (M, N, L, A, LDA, TAU, WORK) CLATRZ factors an upper trapezoidal matrix by means of unitary transformations. Function/Subroutine Documentation subroutine clatrz (integerM, integerN, integerL, complex, dimension( lda, * )A, integerLDA, complex, dimension( * )TAU, complex, dimension( * )WORK) CLATRZ factors an upper trapezoidal matrix by means of…

Read More CLATRZ (3) Linux Manual Page
Linux Manuals | Linux Manuals session 3

CLATRS (3) Linux Manual Page
ByLinux Manual Apr 20, 2026May 20, 2026

NAME clatrs.f – SYNOPSIS Functions/Subroutines subroutine clatrs (UPLO, TRANS, DIAG, NORMIN, N, A, LDA, X, SCALE, CNORM, INFO) CLATRS solves a triangular system of equations with the scale factor set to prevent overflow. Function/Subroutine Documentation subroutine clatrs (characterUPLO, characterTRANS, characterDIAG, characterNORMIN, integerN, complex, dimension( lda, * )A, integerLDA, complex, dimension( * )X, realSCALE, real, dimension(…

Read More CLATRS (3) Linux Manual Page
Linux Manuals | Linux Manuals session 3

CLATRD (3) Linux Manual Page
ByLinux Manual Apr 20, 2026May 20, 2026

NAME clatrd.f – SYNOPSIS Functions/Subroutines subroutine clatrd (UPLO, N, NB, A, LDA, E, TAU, W, LDW) CLATRD reduces the first nb rows and columns of a symmetric/Hermitian matrix A to real tridiagonal form by an unitary similarity transformation. Function/Subroutine Documentation subroutine clatrd (characterUPLO, integerN, integerNB, complex, dimension( lda, * )A, integerLDA, real, dimension( * )E,…

Read More CLATRD (3) Linux Manual Page
Linux Manuals | Linux Manuals session 3

CLATPS (3) Linux Manual Page
ByLinux Manual Apr 20, 2026May 20, 2026

NAME clatps.f – SYNOPSIS Functions/Subroutines subroutine clatps (UPLO, TRANS, DIAG, NORMIN, N, AP, X, SCALE, CNORM, INFO) CLATPS solves a triangular system of equations with the matrix held in packed storage. Function/Subroutine Documentation subroutine clatps (characterUPLO, characterTRANS, characterDIAG, characterNORMIN, integerN, complex, dimension( * )AP, complex, dimension( * )X, realSCALE, real, dimension( * )CNORM, integerINFO) CLATPS…

Read More CLATPS (3) Linux Manual Page
Linux Manuals | Linux Manuals session 3

CLATDF (3) Linux Manual Page
ByLinux Manual Apr 20, 2026May 20, 2026

clatdf.f – Synopsis Functions/Subroutines subroutine clatdf (IJOB, N, Z, LDZ, RHS, RDSUM, RDSCAL, IPIV, JPIV) CLATDF uses the LU factorization of the n-by-n matrix computed by sgetc2 and computes a contribution to the reciprocal Dif-estimate. Function/Subroutine Documentation subroutine clatdf (integerIJOB, integerN, complex, dimension( ldz, * )Z, integerLDZ, complex, dimension( * )RHS, realRDSUM, realRDSCAL, integer, dimension(…

Read More CLATDF (3) Linux Manual Page
Linux Manuals | Linux Manuals session 3

CLATDF (3) Linux Manual Page
ByLinux Manual Apr 20, 2026May 20, 2026

clatdf.f – Synopsis Functions/Subroutines subroutine clatdf (IJOB, N, Z, LDZ, RHS, RDSUM, RDSCAL, IPIV, JPIV) CLATDF uses the LU factorization of the n-by-n matrix computed by sgetc2 and computes a contribution to the reciprocal Dif-estimate. Function/Subroutine Documentation subroutine clatdf (integerIJOB, integerN, complex, dimension( ldz, * )Z, integerLDZ, complex, dimension( * )RHS, realRDSUM, realRDSCAL, integer, dimension(…

Read More CLATDF (3) Linux Manual Page
Linux Manuals | Linux Manuals session 3

CLATDF (3) Linux Manual Page
ByLinux Manual Apr 20, 2026May 20, 2026

NAME clatdf.f – SYNOPSIS Functions/Subroutines subroutine clatdf (IJOB, N, Z, LDZ, RHS, RDSUM, RDSCAL, IPIV, JPIV) CLATDF uses the LU factorization of the n-by-n matrix computed by sgetc2 and computes a contribution to the reciprocal Dif-estimate. Function/Subroutine Documentation subroutine clatdf (integerIJOB, integerN, complex, dimension( ldz, * )Z, integerLDZ, complex, dimension( * )RHS, realRDSUM, realRDSCAL, integer,…

Read More CLATDF (3) Linux Manual Page
Linux Manuals | Linux Manuals session 3

CLATBS (3) Linux Manual Page
ByLinux Manual Apr 20, 2026May 20, 2026

NAME clatbs.f – SYNOPSIS Functions/Subroutines subroutine clatbs (UPLO, TRANS, DIAG, NORMIN, N, KD, AB, LDAB, X, SCALE, CNORM, INFO) CLATBS solves a triangular banded system of equations. Function/Subroutine Documentation subroutine clatbs (characterUPLO, characterTRANS, characterDIAG, characterNORMIN, integerN, integerKD, complex, dimension( ldab, * )AB, integerLDAB, complex, dimension( * )X, realSCALE, real, dimension( * )CNORM, integerINFO) CLATBS solves…

Read More CLATBS (3) Linux Manual Page