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

实用工具类。

Author:

Lucian Barbulescu

Field Summary

Fields

Modifier and Type	Field and Description
static org.hipparchus.analysis.polynomials.PolynomialFunction	ONE 1 表示为多项式。
static org.hipparchus.analysis.polynomials.PolynomialFunction	ZERO 0 表示为多项式。

Method Summary

Modifier and Type	Method and Description
static PolynomialFunctionMatrix	buildIdentityMatrix2() 构建2阶单位矩阵。
static PolynomialFunctionMatrix	buildIdentityMatrix4() 构建4阶单位矩阵。
static PolynomialFunctionMatrix	buildZeroMatrix2() 构建2阶空矩阵。
static PolynomialFunctionMatrix	buildZeroMatrix4() 构建4阶空矩阵。

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 表示为多项式。

ZERO

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

0 表示为多项式。

Method Detail

buildIdentityMatrix2

public static final PolynomialFunctionMatrix buildIdentityMatrix2()

构建2阶单位矩阵。

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

返回：

2阶单位矩阵

buildZeroMatrix2

public static final PolynomialFunctionMatrix buildZeroMatrix2()

构建2阶空矩阵。

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

返回：

2阶空矩阵

buildIdentityMatrix4

public static final PolynomialFunctionMatrix buildIdentityMatrix4()

构建4阶单位矩阵。

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

返回：

4阶单位矩阵

buildZeroMatrix4

public static final PolynomialFunctionMatrix buildZeroMatrix4()

构建4阶空矩阵。

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

返回：

4阶空矩阵