io.github.kensuke1984.kibrary.math

クラス LinearEquation

java.lang.Object

io.github.kensuke1984.kibrary.math.LinearEquation

public class LinearEquation
extends java.lang.Object

Solver for cubic equations with coefficients of real numbers.

This class is immutable

コンストラクタのサマリー

コンストラクタ

コンストラクタと説明
LinearEquation(double... coef) coef[i] * x^ i (i=0,...)
LinearEquation(org.apache.commons.math3.analysis.polynomials.PolynomialFunction pf) Solver for polynomial function = 0

メソッドのサマリー

修飾子とタイプ	メソッドと説明
org.apache.commons.math3.complex.Complex[]	compute()
int	Discriminant()
int	getDegree()
java.lang.String	toString()

クラスから継承されたメソッド java.lang.Object

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

コンストラクタの詳細

LinearEquation

public LinearEquation(double... coef)

coef[i] * x^ i (i=0,...)

パラメータ:

coef - coefficients a[i] i=0,1,...

LinearEquation

public LinearEquation(org.apache.commons.math3.analysis.polynomials.PolynomialFunction pf)

Solver for polynomial function = 0

パラメータ:

pf - polynomial functions for equations

メソッドの詳細

getDegree

public int getDegree()

戻り値:

max degree

toString

public java.lang.String toString()

オーバーライド:

toString クラス内 java.lang.Object

compute

public org.apache.commons.math3.complex.Complex[] compute()

戻り値:

answers of the equation.

例外:

java.lang.RuntimeException - if cannot be solved

Discriminant

public int Discriminant()

戻り値:

type of answers
19: two Imaginary, 20: Double root, 21: two Reals,
28: one Real & two Imaginary, 29: Double Root & one Real, 30: Triple root, 31: three Reals