spral_matrix_util
- Matrix utilities
Purpose
- This packages contains assorted utility routines and datatypes for:
matrix data storage and format conversion
printing of matrices
Version history
- 2016-09-07 Version 0.1.0
API still open to redefinition: only documented entries are considered at all “fixed”.
Matrix type codes
- integer SPRAL_MATRIX_UNSPECIFIED = 0
User doesn’t wish to specify matrix type, use default behaviour for routine.
- integer SPRAL_MATRIX_REAL_RECT = 1
Rectangular real-valued matrix, \(m\ne n\).
- integer SPRAL_REAL_UNSYM = 2
Square real-valued unsymmetric matrix, \(m=n\).
- integer SPRAL_REAL_SYM_PSDEF = 3
Symmetric real-valued positive-definite matrix.
- integer SPRAL_REAL_SYM_INDEF = 4
Symmetric real-valued indefinite matrix.
- integer SPRAL_REAL_SKEW = 6
Skew-symmetric real-valued matrix.
- integer SPRAL_MATRIX_CPLX_RECT = -1
Rectangular complex-valued matrix, \(m\ne n\).
- integer SPRAL_CPLX_UNSYM = -2
Square complex-valued unsymmetric matrix, \(m=n\).
- integer SPRAL_CPLX_HERM_PSDEF = -3
Hermitian complex-valued positive-definite matrix.
- integer SPRAL_CPLX_SYM_INDEF = -4
Hermitian complex-valued indefinite matrix.
- integer SPRAL_CPLX_SYM = -5
Symmetric complex-valued matrix.
- integer SPRAL_CPLX_SKEW = -6
Skew-symmetric complex-valued matrix.