sparse_matrix_exponential::expm_series< T > Struct Template Reference

Matrix exponential multiplied by vector. More...

#include <sparse_matrix_exponential.hpp>

Public Member Functions
vec	operator() (vec x)
	Evaluate x^T*exp(A)
void	update (Eigen::SparseMatrix< T > &A)

Public Attributes
vec	A_values
config< T >	cfg
TMBad::ADFun_packed	F
TMBad::global::Complete< SpAxOp< T > >	multiply
T	N

Friends
class	TMBad::PackWrap< expm_series >

Detailed Description

template<class T>
struct sparse_matrix_exponential::expm_series< T >

Matrix exponential multiplied by vector.

This shared atomic operator can be used in cases where x^T*exp(A) needs to be calculated many times for same sparsity pattern. The number of terms (N) in series can be variable and retaping is triggered if (and only if) N changes compared to previous evaluation.

Note

Multiplication with vector is from the left: x^T * exp(A)

Definition at line 135 of file sparse_matrix_exponential.hpp.

Member Function Documentation

update()

template<class T>

void sparse_matrix_exponential::expm_series< T >::update ( Eigen::SparseMatrix< T > &  A )

inline

Helper to update generator

Definition at line 148 of file sparse_matrix_exponential.hpp.

Member Data Documentation

A_values

template<class T>

vec sparse_matrix_exponential::expm_series< T >::A_values

Vector of sparse matrix non zeros

Definition at line 140 of file sparse_matrix_exponential.hpp.

cfg

template<class T>

config<T> sparse_matrix_exponential::expm_series< T >::cfg

Configuration

Definition at line 146 of file sparse_matrix_exponential.hpp.

Referenced by sparse_matrix_exponential::expm_generator< T >::operator()().

F

template<class T>

TMBad::ADFun_packed sparse_matrix_exponential::expm_series< T >::F

ADFun object that holds the entire matexp tape

Definition at line 144 of file sparse_matrix_exponential.hpp.

multiply

template<class T>

TMBad::global::Complete<SpAxOp<T> > sparse_matrix_exponential::expm_series< T >::multiply

Operator that multiplies sparse matrix with vector

Definition at line 142 of file sparse_matrix_exponential.hpp.

N

template<class T>

T sparse_matrix_exponential::expm_series< T >::N

Number of terms

Definition at line 138 of file sparse_matrix_exponential.hpp.

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The documentation for this struct was generated from the following file:

• sparse_matrix_exponential.hpp