gtsam::System Class Reference

#include <iterative.h>

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

Detailed Description

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

Member Function Documentation

A()

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

inline

Access A matrix

b()

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

inline

Access b vector

gradient()

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

inline

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

multiplyInPlace()

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

inline

Apply operator A in place

operator*()

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

inline

Apply operator A

operator^()

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

inline

Apply operator A'*e

print()

void gtsam::System::print

(

const std::string &

s = "System"

)

const

Print with optional string

transposeMultiplyAdd()

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

inline

x += alpha* A'*e

---

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

• /home/docs/checkouts/readthedocs.org/user_builds/gtsam-jlblanco-docs/checkouts/latest/gtsam/linear/iterative.h