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ObjectPolynom
public class Polynom
The coefficients of a polynomial equation. The equation must be in the form
y = c0 +
c1×x +
c2×x2 +
c3×x3 + ... +
cn×xn
.
The static method roots(double[])
can be used for computing the root of a polynomial
equation without creating a Polygon
object.
Constructor Summary | |
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Polynom(double[] c)
Constructs a polynom with the specified coefficients. |
Method Summary | |
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boolean |
equals(Object object)
Compares this polynom with the specified object for equality. |
int |
hashCode()
Returns a hash value for this polynom. |
static void |
main(String[] c)
Display to the standard output the roots of a polynomial equation. |
double[] |
roots()
Finds the roots of this polynome. |
static double[] |
roots(double[] c)
Finds the roots of a polynomial equation. |
String |
toString()
Returns a string representation of this polynom. |
double |
y(double x)
Evaluates this polynomial equation for the specified x value. |
Methods inherited from class Object |
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clone, finalize, getClass, notify, notifyAll, wait, wait, wait |
Constructor Detail |
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public Polynom(double[] c)
c
- The coefficients. This array is copied.Method Detail |
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public final double y(double x)
c0 +
c1×x +
c2×x2 +
c3×x3 + ... +
cn×xn
.
public double[] roots()
public static double[] roots(double[] c)
c[0] +
c[1]*x +
c[2]*x2 +
c[3]*x3 +
... +
c[n]*xn == 0
where n is the array length minus 1.
c
- The coefficients for the polynomial equation.
n-1
.
UnsupportedOperationException
- if there is more coefficients than this method
can handle.public static void main(String[] c)
c[0] +
c[1]*x +
c[2]*x2 +
c[3]*x3 +
... +
c[n]*xn == 0
where n is the array length minus 1.
c
- The coefficients for the polynomial equation.public int hashCode()
hashCode
in class Object
public boolean equals(Object object)
equals
in class Object
public String toString()
toString
in class Object
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