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- /* linalg/gsl_linalg.h
- *
- * Copyright (C) 1996, 1997, 1998, 1999, 2000 Gerard Jungman, Brian Gough
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or (at
- * your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
- #ifndef __GSL_LINALG_H__
- #define __GSL_LINALG_H__
-
- #include <gsl/gsl_mode.h>
- #include <gsl/gsl_permutation.h>
- #include <gsl/gsl_vector.h>
- #include <gsl/gsl_matrix.h>
-
- #undef __BEGIN_DECLS
- #undef __END_DECLS
- #ifdef __cplusplus
- #define __BEGIN_DECLS extern "C" {
- #define __END_DECLS }
- #else
- #define __BEGIN_DECLS /* empty */
- #define __END_DECLS /* empty */
- #endif
-
- __BEGIN_DECLS
-
- typedef enum
- {
- GSL_LINALG_MOD_NONE = 0,
- GSL_LINALG_MOD_TRANSPOSE = 1,
- GSL_LINALG_MOD_CONJUGATE = 2
- }
- gsl_linalg_matrix_mod_t;
-
-
- /* Note: You can now use the gsl_blas_dgemm function instead of matmult */
-
- /* Simple implementation of matrix multiply.
- * Calculates C = A.B
- *
- * exceptions: GSL_EBADLEN
- */
- int gsl_linalg_matmult (const gsl_matrix * A,
- const gsl_matrix * B,
- gsl_matrix * C);
-
-
- /* Simple implementation of matrix multiply.
- * Allows transposition of either matrix, so it
- * can compute A.B or Trans(A).B or A.Trans(B) or Trans(A).Trans(B)
- *
- * exceptions: GSL_EBADLEN
- */
- int gsl_linalg_matmult_mod (const gsl_matrix * A,
- gsl_linalg_matrix_mod_t modA,
- const gsl_matrix * B,
- gsl_linalg_matrix_mod_t modB,
- gsl_matrix * C);
-
- /* Calculate the matrix exponential by the scaling and
- * squaring method described in Moler + Van Loan,
- * SIAM Rev 20, 801 (1978). The mode argument allows
- * choosing an optimal strategy, from the table
- * given in the paper, for a given precision.
- *
- * exceptions: GSL_ENOTSQR, GSL_EBADLEN
- */
- int gsl_linalg_exponential_ss(
- const gsl_matrix * A,
- gsl_matrix * eA,
- gsl_mode_t mode
- );
-
-
- /* Householder Transformations */
-
- double gsl_linalg_householder_transform (gsl_vector * v);
- gsl_complex gsl_linalg_complex_householder_transform (gsl_vector_complex * v);
-
- int gsl_linalg_householder_hm (double tau,
- const gsl_vector * v,
- gsl_matrix * A);
-
- int gsl_linalg_householder_mh (double tau,
- const gsl_vector * v,
- gsl_matrix * A);
-
- int gsl_linalg_householder_hv (double tau,
- const gsl_vector * v,
- gsl_vector * w);
-
- int gsl_linalg_householder_hm1 (double tau,
- gsl_matrix * A);
-
- int gsl_linalg_complex_householder_hm (gsl_complex tau,
- const gsl_vector_complex * v,
- gsl_matrix_complex * A);
-
- /* Singular Value Decomposition
-
- * exceptions:
- */
-
- int
- gsl_linalg_SV_decomp (gsl_matrix * A,
- gsl_matrix * V,
- gsl_vector * S,
- gsl_vector * work);
-
- int
- gsl_linalg_SV_decomp_mod (gsl_matrix * A,
- gsl_matrix * X,
- gsl_matrix * V,
- gsl_vector * S,
- gsl_vector * work);
-
- int gsl_linalg_SV_decomp_jacobi (gsl_matrix * A,
- gsl_matrix * Q,
- gsl_vector * S);
-
- int
- gsl_linalg_SV_solve (const gsl_matrix * U,
- const gsl_matrix * Q,
- const gsl_vector * S,
- const gsl_vector * b,
- gsl_vector * x);
-
-
- /* LU Decomposition, Gaussian elimination with partial pivoting
- */
-
- int gsl_linalg_LU_decomp (gsl_matrix * A, gsl_permutation * p, int *signum);
-
- int gsl_linalg_LU_solve (const gsl_matrix * LU,
- const gsl_permutation * p,
- const gsl_vector * b,
- gsl_vector * x);
-
- int gsl_linalg_LU_svx (const gsl_matrix * LU,
- const gsl_permutation * p,
- gsl_vector * x);
-
- int gsl_linalg_LU_refine (const gsl_matrix * A,
- const gsl_matrix * LU,
- const gsl_permutation * p,
- const gsl_vector * b,
- gsl_vector * x,
- gsl_vector * residual);
-
- int gsl_linalg_LU_invert (const gsl_matrix * LU,
- const gsl_permutation * p,
- gsl_matrix * inverse);
-
- double gsl_linalg_LU_det (gsl_matrix * LU, int signum);
- double gsl_linalg_LU_lndet (gsl_matrix * LU);
- int gsl_linalg_LU_sgndet (gsl_matrix * lu, int signum);
-
- /* Complex LU Decomposition */
-
- int gsl_linalg_complex_LU_decomp (gsl_matrix_complex * A,
- gsl_permutation * p,
- int *signum);
-
- int gsl_linalg_complex_LU_solve (const gsl_matrix_complex * LU,
- const gsl_permutation * p,
- const gsl_vector_complex * b,
- gsl_vector_complex * x);
-
- int gsl_linalg_complex_LU_svx (const gsl_matrix_complex * LU,
- const gsl_permutation * p,
- gsl_vector_complex * x);
-
- int gsl_linalg_complex_LU_refine (const gsl_matrix_complex * A,
- const gsl_matrix_complex * LU,
- const gsl_permutation * p,
- const gsl_vector_complex * b,
- gsl_vector_complex * x,
- gsl_vector_complex * residual);
-
- int gsl_linalg_complex_LU_invert (const gsl_matrix_complex * LU,
- const gsl_permutation * p,
- gsl_matrix_complex * inverse);
-
- gsl_complex gsl_linalg_complex_LU_det (gsl_matrix_complex * LU,
- int signum);
-
- double gsl_linalg_complex_LU_lndet (gsl_matrix_complex * LU);
-
- gsl_complex gsl_linalg_complex_LU_sgndet (gsl_matrix_complex * LU,
- int signum);
-
- /* QR decomposition */
-
- int gsl_linalg_QR_decomp (gsl_matrix * A,
- gsl_vector * tau);
-
- int gsl_linalg_QR_solve (const gsl_matrix * QR,
- const gsl_vector * tau,
- const gsl_vector * b,
- gsl_vector * x);
-
- int gsl_linalg_QR_svx (const gsl_matrix * QR,
- const gsl_vector * tau,
- gsl_vector * x);
-
- int gsl_linalg_QR_lssolve (const gsl_matrix * QR,
- const gsl_vector * tau,
- const gsl_vector * b,
- gsl_vector * x,
- gsl_vector * residual);
-
-
- int gsl_linalg_QR_QRsolve (gsl_matrix * Q,
- gsl_matrix * R,
- const gsl_vector * b,
- gsl_vector * x);
-
- int gsl_linalg_QR_Rsolve (const gsl_matrix * QR,
- const gsl_vector * b,
- gsl_vector * x);
-
- int gsl_linalg_QR_Rsvx (const gsl_matrix * QR,
- gsl_vector * x);
-
- int gsl_linalg_QR_update (gsl_matrix * Q,
- gsl_matrix * R,
- gsl_vector * w,
- const gsl_vector * v);
-
- int gsl_linalg_QR_QTvec (const gsl_matrix * QR,
- const gsl_vector * tau,
- gsl_vector * v);
-
- int gsl_linalg_QR_Qvec (const gsl_matrix * QR,
- const gsl_vector * tau,
- gsl_vector * v);
-
- int gsl_linalg_QR_unpack (const gsl_matrix * QR,
- const gsl_vector * tau,
- gsl_matrix * Q,
- gsl_matrix * R);
-
- int gsl_linalg_R_solve (const gsl_matrix * R,
- const gsl_vector * b,
- gsl_vector * x);
-
- int gsl_linalg_R_svx (const gsl_matrix * R,
- gsl_vector * x);
-
-
- /* Q R P^T decomposition */
-
- int gsl_linalg_QRPT_decomp (gsl_matrix * A,
- gsl_vector * tau,
- gsl_permutation * p,
- int *signum,
- gsl_vector * norm);
-
- int gsl_linalg_QRPT_decomp2 (const gsl_matrix * A,
- gsl_matrix * q, gsl_matrix * r,
- gsl_vector * tau,
- gsl_permutation * p,
- int *signum,
- gsl_vector * norm);
-
- int gsl_linalg_QRPT_solve (const gsl_matrix * QR,
- const gsl_vector * tau,
- const gsl_permutation * p,
- const gsl_vector * b,
- gsl_vector * x);
-
-
- int gsl_linalg_QRPT_svx (const gsl_matrix * QR,
- const gsl_vector * tau,
- const gsl_permutation * p,
- gsl_vector * x);
-
- int gsl_linalg_QRPT_QRsolve (const gsl_matrix * Q,
- const gsl_matrix * R,
- const gsl_permutation * p,
- const gsl_vector * b,
- gsl_vector * x);
-
- int gsl_linalg_QRPT_Rsolve (const gsl_matrix * QR,
- const gsl_permutation * p,
- const gsl_vector * b,
- gsl_vector * x);
-
- int gsl_linalg_QRPT_Rsvx (const gsl_matrix * QR,
- const gsl_permutation * p,
- gsl_vector * x);
-
- int gsl_linalg_QRPT_update (gsl_matrix * Q,
- gsl_matrix * R,
- const gsl_permutation * p,
- gsl_vector * u,
- const gsl_vector * v);
-
- /* Cholesky Decomposition */
-
- int gsl_linalg_cholesky_decomp (gsl_matrix * A);
-
- int gsl_linalg_cholesky_solve (const gsl_matrix * cholesky,
- const gsl_vector * b,
- gsl_vector * x);
-
- int gsl_linalg_cholesky_svx (const gsl_matrix * cholesky,
- gsl_vector * x);
-
- /* Symmetric to symmetric tridiagonal decomposition */
-
- int gsl_linalg_symmtd_decomp (gsl_matrix * A,
- gsl_vector * tau);
-
- int gsl_linalg_symmtd_unpack (const gsl_matrix * A,
- const gsl_vector * tau,
- gsl_matrix * Q,
- gsl_vector * diag,
- gsl_vector * subdiag);
-
- int gsl_linalg_symmtd_unpack_T (const gsl_matrix * A,
- gsl_vector * diag,
- gsl_vector * subdiag);
-
- /* Hermitian to symmetric tridiagonal decomposition */
-
- int gsl_linalg_hermtd_decomp (gsl_matrix_complex * A,
- gsl_vector_complex * tau);
-
- int gsl_linalg_hermtd_unpack (const gsl_matrix_complex * A,
- const gsl_vector_complex * tau,
- gsl_matrix_complex * Q,
- gsl_vector * diag,
- gsl_vector * sudiag);
-
- int gsl_linalg_hermtd_unpack_T (const gsl_matrix_complex * A,
- gsl_vector * diag,
- gsl_vector * subdiag);
-
- /* Linear Solve Using Householder Transformations
-
- * exceptions:
- */
-
- int gsl_linalg_HH_solve (gsl_matrix * A, const gsl_vector * b, gsl_vector * x);
- int gsl_linalg_HH_svx (gsl_matrix * A, gsl_vector * x);
-
- /* Linear solve for a symmetric tridiagonal system.
-
- * The input vectors represent the NxN matrix as follows:
- *
- * diag[0] offdiag[0] 0 ...
- * offdiag[0] diag[1] offdiag[1] ...
- * 0 offdiag[1] diag[2] ...
- * 0 0 offdiag[2] ...
- * ... ... ... ...
- */
- int gsl_linalg_solve_symm_tridiag (const gsl_vector * diag,
- const gsl_vector * offdiag,
- const gsl_vector * b,
- gsl_vector * x);
-
-
- /* Linear solve for a symmetric cyclic tridiagonal system.
-
- * The input vectors represent the NxN matrix as follows:
- *
- * diag[0] offdiag[0] 0 ..... offdiag[N-1]
- * offdiag[0] diag[1] offdiag[1] .....
- * 0 offdiag[1] diag[2] .....
- * 0 0 offdiag[2] .....
- * ... ...
- * offdiag[N-1] ...
- */
- int gsl_linalg_solve_symm_cyc_tridiag (const gsl_vector * diag,
- const gsl_vector * offdiag,
- const gsl_vector * b,
- gsl_vector * x);
-
-
- /* Bidiagonal decomposition */
-
- int gsl_linalg_bidiag_decomp (gsl_matrix * A,
- gsl_vector * tau_U,
- gsl_vector * tau_V);
-
- int gsl_linalg_bidiag_unpack (const gsl_matrix * A,
- const gsl_vector * tau_U,
- gsl_matrix * U,
- const gsl_vector * tau_V,
- gsl_matrix * V,
- gsl_vector * diag,
- gsl_vector * superdiag);
-
- int gsl_linalg_bidiag_unpack2 (gsl_matrix * A,
- gsl_vector * tau_U,
- gsl_vector * tau_V,
- gsl_matrix * V);
-
- int gsl_linalg_bidiag_unpack_B (const gsl_matrix * A,
- gsl_vector * diag,
- gsl_vector * superdiag);
-
- /* Balancing */
-
- int
- gsl_linalg_balance_columns (gsl_matrix * A, gsl_vector * D);
-
-
- __END_DECLS
-
- #endif /* __GSL_LINALG_H__ */
-