lsst::sphgeom::Matrix3d Class Reference

A 3x3 matrix with real entries stored in double precision. More...

#include <Matrix3d.h>

Public Member Functions
	Matrix3d ()
	This constructor creates a zero matrix.
	Matrix3d (double m00, double m01, double m02, double m10, double m11, double m12, double m20, double m21, double m22)
	Matrix3d (Vector3d const &v)
	Matrix3d (double s)
	This constructor returns the identity matrix scaled by s.
bool	operator== (Matrix3d const &m) const
bool	operator!= (Matrix3d const &m) const
Vector3d	getRow (int r) const
	getRow returns the r-th matrix row. Bounds are not checked.
Vector3d const &	getColumn (int c) const
	getColumn returns the c-th matrix column. Bounds are not checked.
double	operator() (int r, int c) const
double	inner (Matrix3d const &m) const
	inner returns the Frobenius inner product of this matrix with m.
double	getSquaredNorm () const
double	getNorm () const
	getNorm returns the L2 (Frobenius) norm of this matrix.
Vector3d	operator* (Vector3d const &v) const
Matrix3d	operator* (Matrix3d const &m) const
Matrix3d	operator+ (Matrix3d const &m) const
	The addition operator returns the sum of this matrix and m.
Matrix3d	operator- (Matrix3d const &m) const
	The subtraction operator returns the difference between this matrix and m.
Matrix3d	cwiseProduct (Matrix3d const &m) const
	cwiseProduct returns the component-wise product of this matrix and m.
Matrix3d	transpose () const
	transpose returns the transpose of this matrix.
Matrix3d	inverse () const
	inverse returns the inverse of this matrix.

Detailed Description

A 3x3 matrix with real entries stored in double precision.

Constructor & Destructor Documentation

Matrix3d() [1/2]

lsst::sphgeom::Matrix3d::Matrix3d ( double  m00, double  m01, double  m02, double  m10, double  m11, double  m12, double  m20, double  m21, double  m22  )

inline

This constructor creates a matrix from its components, where mij specifies the component for row i and column j.

Matrix3d() [2/2]

lsst::sphgeom::Matrix3d::Matrix3d ( Vector3d const &  v )

inlineexplicit

This constructor creates a diagonal matrix with diagonal components set to the components of v.

Member Function Documentation

getSquaredNorm()

double lsst::sphgeom::Matrix3d::getSquaredNorm ( ) const

inline

getSquaredNorm returns the Frobenius inner product of this matrix with itself.

operator()()

double lsst::sphgeom::Matrix3d::operator() ( int  r, int  c  ) const

inline

The function call operator returns the scalar at row r and column c. Bounds are not checked.

operator*() [1/2]

Vector3d lsst::sphgeom::Matrix3d::operator* ( Vector3d const &  v ) const

inline

The multiplication operator returns the product of this matrix with vector v.

operator*() [2/2]

Matrix3d lsst::sphgeom::Matrix3d::operator* ( Matrix3d const &  m ) const

inline

The multiplication operator returns the product of this matrix with matrix m.

---

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

• include/lsst/sphgeom/Matrix3d.h