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Class D2e ... Operations associated with the solution of systems of linear equations, including matrix inverses, and LU and related factorizations (e.g., matrix reorderings)

Modules for class D2e

Package AMD at NETLIB

AMDATR Approximate minimum degree ordering for symmetric sparse matrices. Uses an upper ...
AMDBAR Approximate minimum degree ordering for symmetric sparse matrices. Uses an upper ...
AMDEXA Approximate minimum degree ordering for symmetric sparse matrices. Uses the exac ...
AMDHAF Approximate minimum degree ordering for symmetric sparse matrices. Uses a "half- ...
AMDHAT Approximate minimum degree ordering for symmetric sparse matrices. Uses a bound ...
AMDTRU Approximate minimum degree ordering for symmetric sparse matrices. Uses the exac ...

Package NAG at ITL|AIX

F11DAF Computes an incomplete LU factorization of a real sparse nonsymmetric matrix, re ...
F11XEF Computes a matrix-vector product involving a real sparse symmetric matrix stored ...
F11XNF Computess a matrix-vector or conjugate transposed matrix-vector product involvin ...
F11XSF Computes a matrix-vector product involving a complex sparse Hermitian matrix sto ...
F11ZBF Sorts the non-zero elements of a real sparse symmetric matrix, represented in sy ...
F11ZNF Sorts the non-zero elements of a complex sparse non-Hermitian matrix, represente ...
F11ZPF Sorts the non-zero elements of a sparse complex Hermitian matrix, represented in ...

Package NAGC at ITL

NAG_SPARSE_NSYM_SORT Sorts the non-zero elements of a real sparse nonsymmetric matrix, represented in ...
NAG_SPARSE_SYM_SORT Sorts the non-zero elements of a real sparse symmetric matrix, represented in sy ...

Package SLATEC at ITL|ARNO

DBHIN (SBHIN) Read a Sparse Linear System in the Boeing/Harwell Format. The matrix is read in ...
DSD2S (SSD2S) Diagonal Scaling Preconditioner SLAP Normal Eqns Set Up. Routine to compute the ...
DSDS (SSDS) Diagonal Scaling Preconditioner SLAP Set Up. Routine to compute the inverse of t ...
DSDSCL (SSDSCL) Diagonal Scaling of system Ax = b. This routine scales (and unscales) the system ...
DSICS (SSICS) Incomplete Cholesky Decomposition Preconditioner SLAP Set Up. Routine to generat ...
DSILUS (SSILUS) Incomplete LU Decomposition Preconditioner SLAP Set Up. Routine to generate the ...
DSLI (SSLI) SLAP MSOLVE for Lower Triangle Matrix. This routine acts as an interface between ...
DSLI2 (SSLI2) SLAP Lower Triangle Matrix Backsolve. Routine to solve a system of the form Lx = ...
DSLLTI (SSLLTI) SLAP MSOLVE for LDL' (IC) Factorization. This routine acts as an interface betwe ...
DSLUI (SSLUI) SLAP MSOLVE for LDU Factorization. This routine acts as an interface between the ...
DSLUI2 (SSLUI2) SLAP Backsolve for LDU Factorization. Routine to solve a system of the form L*D* ...
DSLUI4 (SSLUI4) SLAP Backsolve for LDU Factorization. Routine to solve a system of the form (L*D ...
DSLUTI (SSLUTI) SLAP MTSOLV for LDU Factorization. This routine acts as an interface between the ...
DSMMI2 (SSMMI2) SLAP Backsolve for LDU Factorization of Normal Equations. To solve a system of t ...
DSMMTI (SSMMTI) SLAP MSOLVE for LDU Factorization of Normal Equations. This routine acts as an i ...
SBHIN (DBHIN) Read a Sparse Linear System in the Boeing/Harwell Format. The matrix is read in ...
SSD2S (DSD2S) Diagonal Scaling Preconditioner SLAP Normal Eqns Set Up. Routine to compute the ...
SSDS (DSDS) Diagonal Scaling Preconditioner SLAP Set Up. Routine to compute the inverse of t ...
SSDSCL (DSDSCL) Diagonal Scaling of system Ax = b. This routine scales (and unscales) the system ...
SSICS (DSICS) Incomplete Cholesky Decomposition Preconditioner SLAP Set Up. Routine to generat ...
SSILUS (DSILUS) Incomplete LU Decomposition Preconditioner SLAP Set Up. Routine to generate the ...
SSLI (DSLI) SLAP MSOLVE for Lower Triangle Matrix. This routine acts as an interface between ...
SSLI2 (DSLI2) SLAP Lower Triangle Matrix Backsolve. Routine to solve a system of the form Lx = ...
SSLLTI (DSLLTI) SLAP MSOLVE for LDL' (IC) Factorization. This routine acts as an interface betwe ...
SSLUI (DSLUI) SLAP MSOLVE for LDU Factorization. This routine acts as an interface between the ...
SSLUI2 (DSLUI2) SLAP Backsolve for LDU Factorization. Routine to solve a system of the form L*D* ...
SSLUI4 (DSLUI4) SLAP Backsolve for LDU Factorization. Routine to solve a system of the form (L*D ...
SSLUTI (DSLUTI) SLAP MTSOLV for LDU Factorization. This routine acts as an interface between the ...
SSMMI2 (DSMMI2) SLAP Backsolve for LDU Factorization of Normal Equations. To solve a system of t ...
SSMMTI (DSMMTI) SLAP MSOLVE for LDU Factorization of Normal Equations. This routine acts as an i ...

Package SPARSELIB++ at ITL

SPARSELIB++ C++ class library for sparse matrix computation. Includes matrix classes in seve ...

Package TOMS at NETLIB

508 REDUCE: a Fortran subprogram for reducing the bandwidth and profile of sparse sy ...
509 A hybrid algorithm for reducing the bandwidth and profile of sparse symmetric ma ...
529 MC13D: a Fortran subroutine for finding symmetric permutations to block triangul ...
575 MC21A: a subroutine for finding a row permutation for a zero-free diagonal. That ...
582 GPSKCA: Fortran subroutine for bandwidth or profile reduction of structurally sy ...
604 EXTREM: a Fortran subprogram for the calculating extremal polynomials. If L is a ...
809 PREQN: Automatic generation of preconditioners for conjugate gradient methods. S ...

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