Detailed Description

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

Public Member Functions
	System (const Matrix &A, const Vector &b)

const Matrix &	A () const
	Access A matrix.

const Vector &	b () const
	Access b vector.

Vector	operator^ (const Vector &e) const
	Apply operator A'*e.

void	print (const std::string &s="System") const
	Print with optional string.

Vector	gradient (const Vector &x) const
	gradient of objective function 0.5\|Ax-b_\|^2 at x = A_'(Ax-b_)

Vector	operator* (const Vector &x) const
	Apply operator A.

void	multiplyInPlace (const Vector &x, Vector &e) const
	Apply operator A in place.

void	transposeMultiplyAdd (double alpha, const Vector &e, Vector &x) const
	x += alpha* A'*e

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

Public Member Functions