org.orekit.propagation.semianalytical.dsst.utilities.hansen

Class HansenUtilities

java.lang.Object

org.orekit.propagation.semianalytical.dsst.utilities.hansen.HansenUtilities

public class HansenUtilities
extends Object

Utilities class.

Author:

Lucian Barbulescu

Field Summary

Fields

Modifier and Type	Field and Description
static org.hipparchus.analysis.polynomials.PolynomialFunction	ONE 1 represented as a polynomial.
static org.hipparchus.analysis.polynomials.PolynomialFunction	ZERO 0 represented as a polynomial.

Method Summary

Modifier and Type	Method and Description
static PolynomialFunctionMatrix	buildIdentityMatrix2() Build the identity matrix of order 2.
static PolynomialFunctionMatrix	buildIdentityMatrix4() Build the identity matrix of order 4.
static PolynomialFunctionMatrix	buildZeroMatrix2() Build the empty matrix of order 2.
static PolynomialFunctionMatrix	buildZeroMatrix4() Build the empty matrix of order 4.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

ONE

public static final org.hipparchus.analysis.polynomials.PolynomialFunction ONE

1 represented as a polynomial.

ZERO

public static final org.hipparchus.analysis.polynomials.PolynomialFunction ZERO

0 represented as a polynomial.

Method Detail

buildIdentityMatrix2

public static final PolynomialFunctionMatrix buildIdentityMatrix2()

Build the identity matrix of order 2.

       / 1   0 \
  I₂ = |       |
       \ 0   1 /
 

Returns:

the identity matrix of order 2

buildZeroMatrix2

public static final PolynomialFunctionMatrix buildZeroMatrix2()

Build the empty matrix of order 2.

       / 0   0 \
  E₂ = |       |
       \ 0   0 /
 

Returns:

the identity matrix of order 2

buildIdentityMatrix4

public static final PolynomialFunctionMatrix buildIdentityMatrix4()

Build the identity matrix of order 4.

       / 1  0  0  0 \
       |            |
       | 0  1  0  0 |
  I₄ = |            |
       | 0  0  1  0 |
       |            |
       \ 0  0  0  1 /
 

Returns:

the identity matrix of order 4

buildZeroMatrix4

public static final PolynomialFunctionMatrix buildZeroMatrix4()

Build the empty matrix of order 4.

       / 0  0  0  0 \
       |            |
       | 0  0  0  0 |
  E₄ = |            |
       | 0  0  0  0 |
       |            |
       \ 0  0  0  0 /
 

Returns:

the identity matrix of order 4