| Chapter Introduction | |
| Module 4.1: nag_mat_norm - Norms of a Matrix | |
| nag_gen_mat_norm | Computes a norm, or the element of largest absolute value, of a general real or complex matrix |
| nag_gen_bnd_mat_norm | Computes a norm, or the element of largest absolute value, of a real or complex square banded matrix |
| nag_sym_mat_norm | Computes a norm, or the element of largest absolute value, of a real or complex, symmetric or Hermitian matrix, stored in conventional or packed storage |
| nag_sym_bnd_mat_norm | Computes a norm, or the element of largest absolute value, of a real or complex, symmetric or Hermitian band matrix |
| nag_trap_mat_norm | Computes a norm, or the element of largest absolute value, of a real or complex trapezoidal matrix |
| nag_tri_mat_norm | Computes a norm, or the element of largest absolute value, of a real or complex triangular matrix, stored in conventional or packed storage |
| nag_tri_bnd_mat_norm | Computes a norm, or the element of largest absolute value, of a real or complex triangular band matrix |
| nag_hessen_mat_norm | Computes a norm, or the element of largest absolute value, of a real or complex upper Hessenberg matrix |
| Examples | |
| Module 4.2: nag_mat_inv - Matrix Inversion | |
| nag_gen_mat_inv | Computes the inverse of a general real or complex matrix |
| nag_gen_mat_inv_fac | Computes the inverse of a general real or complex matrix, with the matrix previously factorized using nag_gen_lin_fac |
| nag_sym_mat_inv | Computes the inverse of a real or complex, symmetric or Hermitian matrix |
| nag_sym_mat_inv_fac | Computes the inverse of a real or complex, symmetric or Hermitian matrix, with the matrix previously factorized using nag_sym_lin_fac |
| nag_tri_mat_inv | Computes the inverse of a real or complex triangular matrix |
| Examples | |
| Module 4.3: nag_sparse_mat - Sparse Matrix Utilities | |
| nag_sparse_mat_init_coo | Initializes a sparse matrix data structure from COO format |
| nag_sparse_mat_init_csc | Initializes a sparse matrix data structure from CSC format |
| nag_sparse_mat_init_csr | Initializes a sparse matrix data structure from CSR format |
| nag_sparse_mat_init_dia | Initializes a sparse matrix data structure from DIA format |
| nag_sparse_mat_extract | Extracts details of a sparse matrix from a structure of type nag_sparse_mat_real_wp or nag_sparse_mat_cmplx_wp |
| nag_sparse_mat_real_wp | Represents a real sparse matrix |
| nag_sparse_mat_cmplx_wp | Represents a complex sparse matrix |
| Examples | |