Package org.sunflow.math
Class Solvers
- java.lang.Object
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- org.sunflow.math.Solvers
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public final class Solvers extends java.lang.Object
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Constructor Summary
Constructors Constructor Description Solvers()
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Method Summary
All Methods Static Methods Concrete Methods Modifier and Type Method Description static double[]
solveQuadric(double a, double b, double c)
Solves the equation ax^2+bx+c=0.static double[]
solveQuartic(double a, double b, double c, double d, double e)
Solve a quartic equation of the form ax^4+bx^3+cx^2+cx^1+d=0.
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Method Detail
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solveQuadric
public static final double[] solveQuadric(double a, double b, double c)
Solves the equation ax^2+bx+c=0. Solutions are returned in a sorted array if they exist.- Parameters:
a
- coefficient of x^2b
- coefficient of x^1c
- coefficient of x^0- Returns:
- an array containing the two real roots, or
null
if no real solutions exist
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solveQuartic
public static double[] solveQuartic(double a, double b, double c, double d, double e)
Solve a quartic equation of the form ax^4+bx^3+cx^2+cx^1+d=0. The roots are returned in a sorted array of doubles in increasing order.- Parameters:
a
- coefficient of x^4b
- coefficient of x^3c
- coefficient of x^2d
- coefficient of x^1e
- coefficient of x^0- Returns:
- a sorted array of roots, or
null
if no solutions exist
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