#include <DenseGenMatProd.h>
Public Types | |
using | Scalar = Scalar_ |
Public Member Functions | |
Index | cols () const |
template<typename Derived > | |
DenseGenMatProd (const Eigen::MatrixBase< Derived > &mat) | |
Scalar | operator() (Index i, Index j) const |
Matrix | operator* (const Eigen::Ref< const Matrix > &mat_in) const |
void | perform_op (const Scalar *x_in, Scalar *y_out) const |
Index | rows () const |
Private Types | |
using | ConstGenericMatrix = const Eigen::Ref< const Matrix > |
using | Index = Eigen::Index |
using | MapConstVec = Eigen::Map< const Vector > |
using | MapVec = Eigen::Map< Vector > |
using | Matrix = Eigen::Matrix< Scalar, Eigen::Dynamic, Eigen::Dynamic, Flags > |
using | Vector = Eigen::Matrix< Scalar, Eigen::Dynamic, 1 > |
Private Attributes | |
ConstGenericMatrix | m_mat |
This class defines the matrix-vector multiplication operation on a general real matrix , i.e., calculating
for any vector
. It is mainly used in the GenEigsSolver and SymEigsSolver eigen solvers.
Scalar_ | The element type of the matrix, for example, float , double , and long double . |
Flags | Either Eigen::ColMajor or Eigen::RowMajor , indicating the storage format of the input matrix. |
Definition at line 34 of file DenseGenMatProd.h.
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Definition at line 48 of file DenseGenMatProd.h.
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Definition at line 43 of file DenseGenMatProd.h.
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private |
Definition at line 46 of file DenseGenMatProd.h.
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Definition at line 47 of file DenseGenMatProd.h.
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Definition at line 44 of file DenseGenMatProd.h.
using Spectra::DenseGenMatProd< Scalar_, Flags >::Scalar = Scalar_ |
Element type of the matrix.
Definition at line 40 of file DenseGenMatProd.h.
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private |
Definition at line 45 of file DenseGenMatProd.h.
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inline |
Constructor to create the matrix operation object.
mat | An Eigen matrix object, whose type can be Eigen::Matrix<Scalar, ...> (e.g. Eigen::MatrixXd and Eigen::MatrixXf ), or its mapped version (e.g. Eigen::Map<Eigen::MatrixXd> ). |
Definition at line 62 of file DenseGenMatProd.h.
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Return the number of columns of the underlying matrix.
Definition at line 77 of file DenseGenMatProd.h.
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Extract (i,j) element of the underlying matrix.
Definition at line 104 of file DenseGenMatProd.h.
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Perform the matrix-matrix multiplication operation .
Definition at line 96 of file DenseGenMatProd.h.
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Perform the matrix-vector multiplication operation .
x_in | Pointer to the ![]() |
y_out | Pointer to the ![]() |
Definition at line 86 of file DenseGenMatProd.h.
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Return the number of rows of the underlying matrix.
Definition at line 73 of file DenseGenMatProd.h.
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Definition at line 50 of file DenseGenMatProd.h.