gtsam::System Class Reference

#include <iterative.h>

Public Member Functions
const Matrix &	A () const
const Vector &	b () const
Vector	gradient (const Vector &x) const
void	multiplyInPlace (const Vector &x, Vector &e) const
Vector	operator* (const Vector &x) const
Vector	operator^ (const Vector &e) const
void	print (const std::string &s="System") const
	System (const Matrix &A, const Vector &b)
void	transposeMultiplyAdd (double alpha, const Vector &e, Vector &x) const

Private Attributes
const Matrix &	A_
const Vector &	b_

Detailed Description

Helper class encapsulating the combined system |Ax-b_|^2 Needed to run Conjugate Gradients on matrices

Definition at line 44 of file iterative.h.

Constructor & Destructor Documentation

gtsam::System::System ( const Matrix &  A, const Vector &  b  )

inline

Definition at line 52 of file iterative.h.

Member Function Documentation

const Matrix& gtsam::System::A ( ) const

inline

Access A matrix

Definition at line 57 of file iterative.h.

const Vector& gtsam::System::b ( ) const

inline

Access b vector

Definition at line 60 of file iterative.h.

Vector gtsam::System::gradient ( const Vector &  x ) const

inline

gradient of objective function 0.5*|Ax-b_|^2 at x = A_'*(Ax-b_)

Definition at line 73 of file iterative.h.

void gtsam::System::multiplyInPlace ( const Vector &  x, Vector &  e  ) const

inline

Apply operator A in place

Definition at line 83 of file iterative.h.

Vector gtsam::System::operator* ( const Vector &  x ) const

inline

Apply operator A

Definition at line 78 of file iterative.h.

Vector gtsam::System::operator^ ( const Vector &  e ) const

inline

Apply operator A'*e

Definition at line 63 of file iterative.h.

void gtsam::System::print

(

const std::string &

s = "System"

)

const

Print with optional string

Definition at line 32 of file iterative.cpp.

void gtsam::System::transposeMultiplyAdd ( double  alpha, const Vector &  e, Vector &  x  ) const

inline

x += alpha* A'*e

Definition at line 88 of file iterative.h.

Member Data Documentation

const Matrix& gtsam::System::A_

private

Definition at line 47 of file iterative.h.

const Vector& gtsam::System::b_

private

Definition at line 48 of file iterative.h.

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The documentation for this class was generated from the following files:

• iterative.h
• iterative.cpp