JMATH::JMatrix1S Class Reference

1 x 1 symmetric matrix More...

#include <JMatrix1S.hh>

Inheritance diagram for JMATH::JMatrix1S:

Public Member Functions
	JMatrix1S ()
	Default constructor. More...
	JMatrix1S (const JMatrix1D &A)
	Contructor. More...
	JMatrix1S (const double __a00)
	Contructor. More...
void	invert ()
	Invert matrix. More...
JMatrix1D &	setIdentity ()
	Set to identity matrix. More...
void	set (const JMatrix1D &A)
	Set matrix. More...
JMatrix1D &	reset ()
	Set matrix to the null matrix. More...
JMatrix1D &	transpose ()
	Transpose. More...
JMatrix1D &	negate ()
	Negate matrix. More...
JMatrix1D &	add (const JMatrix1D &A)
	Matrix addition. More...
JMatrix1D &	sub (const JMatrix1D &A)
	Matrix subtraction. More...
JMatrix1D &	mul (const double factor)
	Scale matrix. More...
JMatrix1D &	mul (const JMatrix1D &A, const JMatrix1D &B)
	Matrix multiplication. More...
JMatrix1D &	mul (const JNullType &object)
	Multiply with object. More...
JMatrix1D &	div (const double factor)
	Scale matrix. More...
bool	equals (const JMatrix1D &A, const double eps=std::numeric_limits< double >::min()) const
	Equality. More...
bool	isIdentity (const double eps=std::numeric_limits< double >::min()) const
	Test identity. More...
double	getDeterminant () const
	Get determinant of matrix. More...
void	transform (double &__x) const
	Transform. More...

Static Public Member Functions
static const JMatrix1D &	getInstance ()
	Get reference to unique instance of this class object. More...
static const JMatrix1D &	getIdentity ()
	Get reference to unique instance of this class object. More...

Public Attributes
double	a00

Detailed Description

1 x 1 symmetric matrix

Definition at line 26 of file JMatrix1S.hh.

Constructor & Destructor Documentation

JMATH::JMatrix1S::JMatrix1S ( )

inline

Default constructor.

Definition at line 33 of file JMatrix1S.hh.

                :
      JMatrix1D()
    {}

JMATH::JMatrix1S::JMatrix1S ( const JMatrix1D &  A )

inline

Contructor.

Parameters

A

matrix

Definition at line 43 of file JMatrix1S.hh.

                                  :
      JMatrix1D(A)
    {}

JMATH::JMatrix1S::JMatrix1S ( const double  __a00 )

inline

Contructor.

Parameters

__a00

(0,0)

Definition at line 53 of file JMatrix1S.hh.

                                  :
      JMatrix1D(__a00)
    {}

Member Function Documentation

void JMATH::JMatrix1S::invert ( )

inline

Invert matrix.

Definition at line 61 of file JMatrix1S.hh.

    {
      if (a00 == 0) {
        throw JDivisionByZero("LDU decomposition zero pivot");
      }

      a00 = 1.0 / a00;
    }

static const JMatrix1D& JMATH::JMatrix1D::getInstance ( )

inlinestaticinherited

Get reference to unique instance of this class object.

Returns

zero matrix

Definition at line 64 of file JMatrix1D.hh.

    {
      static JMatrix1D matrix;

      return matrix;
    }

JMatrix1D& JMATH::JMatrix1D::setIdentity ( )

inlineinherited

Set to identity matrix.

Returns

this matrix

Definition at line 77 of file JMatrix1D.hh.

    {
      a00 = 1.0;

      return *this;
    }

static const JMatrix1D& JMATH::JMatrix1D::getIdentity ( )

inlinestaticinherited

Get reference to unique instance of this class object.

Returns

identity matrix

Definition at line 90 of file JMatrix1D.hh.

    {
      static JMatrix1D matrix(JMatrix1D().setIdentity());

      return matrix;
    }

void JMATH::JMatrix1D::set ( const JMatrix1D &  A )

inlineinherited

Set matrix.

Parameters

A

matrix

Definition at line 103 of file JMatrix1D.hh.

    {
      static_cast<JMatrix1D&>(*this) = A;
    }

JMatrix1D& JMATH::JMatrix1D::reset ( )

inlineinherited

Set matrix to the null matrix.

Returns

this matrix

Definition at line 114 of file JMatrix1D.hh.

    {
      *this = JMatrix1D();
      
      return *this;
    }

JMatrix1D& JMATH::JMatrix1D::transpose ( )

inlineinherited

Transpose.

Returns

this matrix

Definition at line 127 of file JMatrix1D.hh.

    {
      return *this;
    }

JMatrix1D& JMATH::JMatrix1D::negate ( )

inlineinherited

Negate matrix.

Returns

-this matrix

Definition at line 138 of file JMatrix1D.hh.

    {
      a00 = -a00;

      return *this;
    }

JMatrix1D& JMATH::JMatrix1D::add ( const JMatrix1D &  A )

inlineinherited

Matrix addition.

Parameters

A

matrix

Returns

this matrix + A

Definition at line 152 of file JMatrix1D.hh.

    {
      a00 += A.a00;

      return *this;
    }

JMatrix1D& JMATH::JMatrix1D::sub ( const JMatrix1D &  A )

inlineinherited

Matrix subtraction.

Parameters

A

matrix

Returns

this matrix - A

Definition at line 166 of file JMatrix1D.hh.

    {
      a00 -= A.a00;

      return *this;
    }

JMatrix1D& JMATH::JMatrix1D::mul ( const double  factor )

inlineinherited

Scale matrix.

Parameters

factor

factor

Returns

this matrix * factor

Definition at line 180 of file JMatrix1D.hh.

    {
      a00 *= factor;

      return *this;
    }

JMatrix1D& JMATH::JMatrix1D::mul ( const JMatrix1D &  A, const JMatrix1D &  B  )

inlineinherited

Matrix multiplication.

Parameters

A	matrix
B	matrix

Returns

this matrix

Definition at line 209 of file JMatrix1D.hh.

    {
      a00 = A.a00 * B.a00;
      
      return *this;
    }

JMatrix1D & JMATH::JMath< JMatrix1D , JNullType >::mul ( const JNullType &  object )

inlineinherited

Multiply with object.

Parameters

object

object

Returns

result object

Definition at line 357 of file JMath.hh.

    {
      return static_cast<JFirst_t&>(*this) = JCalculator<JFirst_t>::calculator.mul(static_cast<const JFirst_t&>(*this), object);
    }

JMatrix1D& JMATH::JMatrix1D::div ( const double  factor )

inlineinherited

Scale matrix.

Parameters

factor

factor

Returns

this matrix / factor

Definition at line 194 of file JMatrix1D.hh.

    {
      a00 /= factor;

      return *this;
    }

bool JMATH::JMatrix1D::equals ( const JMatrix1D &  A, const double  eps = std::numeric_limits<double>::min()  ) const

inlineinherited

Equality.

Parameters

A	matrix
eps	numerical precision

Returns

true if matrices identical; else false

Definition at line 225 of file JMatrix1D.hh.

    {
      return (fabs(a00 - A.a00) <= eps);
    }

bool JMATH::JMatrix1D::isIdentity ( const double  eps = std::numeric_limits<double>::min() ) const

inlineinherited

Test identity.

Parameters

eps	numerical precision

Returns

true if identity matrix; else false

Definition at line 238 of file JMatrix1D.hh.

    {
      return equals(getIdentity(), eps);
    }

double JMATH::JMatrix1D::getDeterminant ( ) const

inlineinherited

Get determinant of matrix.

Returns

determinant of matrix

Definition at line 249 of file JMatrix1D.hh.

    {
      return a00;
    }

void JMATH::JMatrix1D::transform ( double &  __x ) const

inlineinherited

Transform.

Parameters

__x

x value

Definition at line 260 of file JMatrix1D.hh.

    {
      __x = a00 * __x;
    }

Member Data Documentation

double JMATH::JMatrix1D::a00

inherited

Definition at line 315 of file JMatrix1D.hh.

---

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

• JMatrix1S.hh