F06 Chapter Contents (PDF version)
F06 Chapter Introduction
NAG Library Manual

NAG Library Chapter Contents

F06 – Linear Algebra Support Routines

F06 Chapter Introduction

Routine
Name		 Mark of
Introduction
Purpose
F06AAF 12 DROTG
Generate real plane rotation
F06BAF 12 Generate real plane rotation, storing tangent
F06BCF 12 Recover cosine and sine from given real tangent
F06BEF 12 Generate real Jacobi plane rotation
F06BHF 12 Apply real similarity rotation to 2 by 2 symmetric matrix
F06BLF 12 Compute quotient of two real scalars, with overflow flag
F06BMF 12 Compute Euclidean norm from scaled form
F06BNF 12 Compute square root of a2+b2, reala and b
F06BPF 12 Compute eigenvalue of 2 by 2 real symmetric matrix
F06CAF 12 Generate complex plane rotation, storing tangent, real cosine
F06CBF 12 Generate complex plane rotation, storing tangent, real sine
F06CCF 12 Recover cosine and sine from given complex tangent, real cosine
F06CDF 12 Recover cosine and sine from given complex tangent, real sine
F06CHF 12 Apply complex similarity rotation to 2 by 2 Hermitian matrix
F06CLF 12 Compute quotient of two complex scalars, with overflow flag
F06DBF 12 Broadcast scalar into integer vector
F06DFF 12 Copy integer vector
F06EAF 12 DDOT
Dot product of two real vectors
F06ECF 12 DAXPY
Add scalar times real vector to real vector
F06EDF 12 DSCAL
Multiply real vector by scalar
F06EFF 12 DCOPY
Copy real vector
F06EGF 12 DSWAP
Swap two real vectors
F06EJF 12 DNRM2
Compute Euclidean norm of real vector
F06EKF 12 DASUM
Sum absolute values of real vector elements
F06EPF 12 DROT
Apply real plane rotation
F06ERF 14 DDOTI
Dot product of two real sparse vectors
F06ETF 14 DAXPYI
Add scalar times real sparse vector to real sparse vector
F06EUF 14 DGTHR
Gather real sparse vector
F06EVF 14 DGTHRZ
Gather and set to zero real sparse vector
F06EWF 14 DSCTR
Scatter real sparse vector
F06EXF 14 DROTI
Apply plane rotation to two real sparse vectors
F06FAF 12 Compute cosine of angle between two real vectors
F06FBF 12 Broadcast scalar into real vector
F06FCF 12 Multiply real vector by diagonal matrix
F06FDF 12 Multiply real vector by scalar, preserving input vector
F06FEF 21 Multiply real vector by reciprocal of scalar
F06FGF 12 Negate real vector
F06FJF 12 Update Euclidean norm of real vector in scaled form
F06FKF 12 Compute weighted Euclidean norm of real vector
F06FLF 12 Elements of real vector with largest and smallest absolute value
F06FPF 12 Apply real symmetric plane rotation to two vectors
F06FQF 12 Generate sequence of real plane rotations
F06FRF 12 Generate real elementary reflection, NAG style
F06FSF 12 Generate real elementary reflection, LINPACK style
F06FTF 12 Apply real elementary reflection, NAG style
F06FUF 12 Apply real elementary reflection, LINPACK style
F06GAF 12 ZDOTU
Dot product of two complex vectors, unconjugated
F06GBF 12 ZDOTC
Dot product of two complex vectors, conjugated
F06GCF 12 ZAXPY
Add scalar times complex vector to complex vector
F06GDF 12 ZSCAL
Multiply complex vector by complex scalar
F06GFF 12 ZCOPY
Copy complex vector
F06GGF 12 ZSWAP
Swap two complex vectors
F06GRF 14 ZDOTUI
Dot product of two complex sparse vector, unconjugated
F06GSF 14 ZDOTCI
Dot product of two complex sparse vector, conjugated
F06GTF 14 ZAXPYI
Add scalar times complex sparse vector to complex sparse vector
F06GUF 14 ZGTHR
Gather complex sparse vector
F06GVF 14 ZGTHRZ
Gather and set to zero complex sparse vector
F06GWF 14 ZSCTR
Scatter complex sparse vector
F06HBF 12 Broadcast scalar into complex vector
F06HCF 12 Multiply complex vector by complex diagonal matrix
F06HDF 12 Multiply complex vector by complex scalar, preserving input vector
F06HGF 12 Negate complex vector
F06HMF 21 ZROT
Apply plane rotation with real cosine and complex sine
F06HPF 12 Apply complex plane rotation
F06HQF 12 Generate sequence of complex plane rotations
F06HRF 12 Generate complex elementary reflection
F06HTF 12 Apply complex elementary reflection
F06JDF 12 ZDSCAL
Multiply complex vector by real scalar
F06JJF 12 DZNRM2
Compute Euclidean norm of complex vector
F06JKF 12 DZASUM
Sum absolute values of complex vector elements
F06JLF 12 IDAMAX
Index, real vector element with largest absolute value
F06JMF 12 IZAMAX
Index, complex vector element with largest absolute value
F06KCF 12 Multiply complex vector by real diagonal matrix
F06KDF 12 Multiply complex vector by real scalar, preserving input vector
F06KEF 21 Multiply complex vector by reciprocal of real scalar
F06KFF 12 Copy real vector to complex vector
F06KJF 12 Update Euclidean norm of complex vector in scaled form
F06KLF 12 Last non-negligible element of real vector
F06KPF 12 Apply real plane rotation to two complex vectors
F06PAF 12 DGEMV
Matrix-vector product, real rectangular matrix
F06PBF 12 DGBMV
Matrix-vector product, real rectangular band matrix
F06PCF 12 DSYMV
Matrix-vector product, real symmetric matrix
F06PDF 12 DSBMV
Matrix-vector product, real symmetric band matrix
F06PEF 12 DSPMV
Matrix-vector product, real symmetric packed matrix
F06PFF 12 DTRMV
Matrix-vector product, real triangular matrix
F06PGF 12 DTBMV
Matrix-vector product, real triangular band matrix
F06PHF 12 DTPMV
Matrix-vector product, real triangular packed matrix
F06PJF 12 DTRSV
System of equations, real triangular matrix
F06PKF 12 DTBSV
System of equations, real triangular band matrix
F06PLF 12 DTPSV
System of equations, real triangular packed matrix
F06PMF 12 DGER
Rank-1 update, real rectangular matrix
F06PPF 12 DSYR
Rank-1 update, real symmetric matrix
F06PQF 12 DSPR
Rank-1 update, real symmetric packed matrix
F06PRF 12 DSYR2
Rank-2 update, real symmetric matrix
F06PSF 12 DSPR2
Rank-2 update, real symmetric packed matrix
F06QFF 13 Matrix copy, real rectangular or trapezoidal matrix
F06QHF 13 Matrix initialization, real rectangular matrix
F06QJF 13 Permute rows or columns, real rectangular matrix, permutations represented by an integer array
F06QKF 13 Permute rows or columns, real rectangular matrix, permutations represented by a real array
F06QMF 13 Orthogonal similarity transformation of real symmetric matrix as a sequence of plane rotations
F06QPF 13 QR factorization by sequence of plane rotations, rank-1 update of real upper triangular matrix
F06QQF 13 QR factorization by sequence of plane rotations, real upper triangular matrix augmented by a full row
F06QRF 13 QR or RQ factorization by sequence of plane rotations, real upper Hessenberg matrix
F06QSF 13 QR or RQ factorization by sequence of plane rotations, real upper spiked matrix
F06QTF 13 QR factorization of UP or RQ factorization of PU, Ureal upper triangular, P a sequence of plane rotations
F06QVF 13 Compute upper Hessenberg matrix by sequence of plane rotations, real upper triangular matrix
F06QWF 13 Compute upper spiked matrix by sequence of plane rotations, real upper triangular matrix
F06QXF 13 Apply sequence of plane rotations, real rectangular matrix
F06RAF 15 1-norm, ∞-norm, Frobenius norm, largest absolute element, real general matrix
F06RBF 15 1-norm, ∞-norm, Frobenius norm, largest absolute element, real band matrix
F06RCF 15 1-norm, ∞-norm, Frobenius norm, largest absolute element, real symmetric matrix
F06RDF 15 1-norm, ∞-norm, Frobenius norm, largest absolute element, real symmetric matrix, packed storage
F06REF 15 1-norm, ∞-norm, Frobenius norm, largest absolute element, real symmetric band matrix
F06RJF 15 1-norm, ∞-norm, Frobenius norm, largest absolute element, real trapezoidal/triangular matrix
F06RKF 15 1-norm, ∞-norm, Frobenius norm, largest absolute element, real triangular matrix, packed storage
F06RLF 15 1-norm, ∞-norm, Frobenius norm, largest absolute element, real triangular band matrix
F06RMF 15 1-norm, ∞-norm, Frobenius norm, largest absolute element, real Hessenberg matrix
F06RNF 21 1-norm, ∞-norm, Frobenius norm, largest absolute element, real tridiagonal matrix
F06RPF 21 1-norm, ∞-norm, Frobenius norm, largest absolute element, real symmetric tridiagonal matrix
F06SAF 12 ZGEMV
Matrix-vector product, complex rectangular matrix
F06SBF 12 ZGBMV
Matrix-vector product, complex rectangular band matrix
F06SCF 12 ZHEMV
Matrix-vector product, complex Hermitian matrix
F06SDF 12 ZHBMV
Matrix-vector product, complex Hermitian band matrix
F06SEF 12 ZHPMV
Matrix-vector product, complex Hermitian packed matrix
F06SFF 12 ZTRMV
Matrix-vector product, complex triangular matrix
F06SGF 12 ZTBMV
Matrix-vector product, complex triangular band matrix
F06SHF 12 ZTPMV
Matrix-vector product, complex triangular packed matrix
F06SJF 12 ZTRSV
System of equations, complex triangular matrix
F06SKF 12 ZTBSV
System of equations, complex triangular band matrix
F06SLF 12 ZTPSV
System of equations, complex triangular packed matrix
F06SMF 12 ZGERU
Rank-1 update, complex rectangular matrix, unconjugated vector
F06SNF 12 ZGERC
Rank-1 update, complex rectangular matrix, conjugated vector
F06SPF 12 ZHER
Rank-1 update, complex Hermitian matrix
F06SQF 12 ZHPR
Rank-1 update, complex Hermitian packed matrix
F06SRF 12 ZHER2
Rank-2 update, complex Hermitian matrix
F06SSF 12 ZHPR2
Rank-2 update, complex Hermitian packed matrix
F06TAF 21 Matrix-vector product, complex symmetric matrix
F06TBF 21 Rank-1 update, complex symmetric matrix
F06TCF 21 Matrix-vector product, complex symmetric packed matrix
F06TDF 21 Rank-1 update, complex symmetric packed matrix
F06TFF 13 Matrix copy, complex rectangular or trapezoidal matrix
F06THF 13 Matrix initialization, complex rectangular matrix
F06TMF 13 Unitary similarity transformation of Hermitian matrix as a sequence of plane rotations
F06TPF 13 QR factorization by sequence of plane rotations, rank-1 update of complex upper triangular matrix
F06TQF 13 QR×k factorization by sequence of plane rotations, complex upper triangular matrix augmented by a full row
F06TRF 13 QR or RQ factorization by sequence of plane rotations, complex upper Hessenberg matrix
F06TSF 13 QR or RQ factorization by sequence of plane rotations, complex upper spiked matrix
F06TTF 13 QR factorization of UP or RQ factorization of PU, U complex upper triangular, P a sequence of plane rotations
F06TVF 13 Compute upper Hessenberg matrix by sequence of plane rotations, complex upper triangular matrix
F06TWF 13 Compute upper spiked matrix by sequence of plane rotations, complex upper triangular matrix
F06TXF 13 Apply sequence of plane rotations, complex rectangular matrix, real cosine and complex sine
F06TYF 13 Apply sequence of plane rotations, complex rectangular matrix, complex cosine and real sine
F06UAF 15 1-norm, ∞-norm, Frobenius norm, largest absolute element, complex general matrix
F06UBF 15 1-norm, ∞-norm, Frobenius norm, largest absolute element, complex band matrix
F06UCF 15 1-norm, ∞-norm, Frobenius norm, largest absolute element, complex Hermitian matrix
F06UDF 15 1-norm, ∞-norm, Frobenius norm, largest absolute element, complex Hermitian matrix, packed storage
F06UEF 15 1-norm, ∞-norm, Frobenius norm, largest absolute element, complex Hermitian band matrix
F06UFF 15 1-norm, ∞-norm, Frobenius norm, largest absolute element, complex symmetric matrix
F06UGF 15 1-norm, ∞-norm, Frobenius norm, largest absolute element, complex symmetric matrix, packed storage
F06UHF 15 1-norm, ∞-norm, Frobenius norm, largest absolute element, complex symmetric band matrix
F06UJF 15 1-norm, ∞-norm, Frobenius norm, largest absolute element, complex trapezoidal/triangular matrix
F06UKF 15 1-norm, ∞-norm, Frobenius norm, largest absolute element, complex triangular matrix, packed storage
F06ULF 15 1-norm, ∞-norm, Frobenius norm, largest absolute element, complex triangular band matrix
F06UMF 15 1-norm, ∞-norm, Frobenius norm, largest absolute element, complex Hessenberg matrix
F06UNF 21 1-norm, ∞-norm, Frobenius norm, largest absolute element, complex tridiagonal matrix
F06UPF 21 1-norm, ∞-norm, Frobenius norm, largest absolute element, complex Hermitian tridiagonal matrix
F06VJF 13 Permute rows or columns, complex rectangular matrix, permutations represented by an integer array
F06VKF 13 Permute rows or columns, complex rectangular matrix, permutations represented by a real array
F06VXF 13 Apply sequence of plane rotations, complex rectangular matrix, real cosine and sine
F06YAF 14 DGEMM
Matrix-matrix product, two real rectangular matrices
F06YCF 14 DSYMM
Matrix-matrix product, one real symmetric matrix, one real rectangular matrix
F06YFF 14 DTRMM
Matrix-matrix product, one real triangular matrix, one real rectangular matrix
F06YJF 14 DTRSM
Solves a system of equations with multiple right-hand sides, real triangular coefficient matrix
F06YPF 14 DSYRK
Rank-k update of a real symmetric matrix
F06YRF 14 DSYR2K
Rank-2k update of a real symmetric matrix
F06ZAF 14 ZGEMM
Matrix-matrix product, two complex rectangular matrices
F06ZCF 14 ZHEMM
Matrix-matrix product, one complex Hermitian matrix, one complex rectangular matrix
F06ZFF 14 ZTRMM
Matrix-matrix product, one complex triangular matrix, one complex rectangular matrix
F06ZJF 14 ZTRSM
Solves system of equations with multiple right-hand sides, complex triangular coefficient matrix
F06ZPF 14 ZHERK
Rank-k update of a complex Hermitian matrix
F06ZRF 14 ZHER2K
Rank-2k update of a complex Hermitian matrix
F06ZTF 14 ZSYMM
Matrix-matrix product, one complex symmetric matrix, one complex rectangular matrix
F06ZUF 14 ZSYRK
Rank-k update of a complex symmetric matrix
F06ZWF 14 ZSYR2K
Rank-2k update of a complex symmetric matrix
F06 Chapter Contents (PDF version)
F06 Chapter Introduction
NAG Library Manual
© The Numerical Algorithms Group Ltd, Oxford, UK. 2009