calc
Class Polynom

java.lang.Object
  |
  +--calc.Polynom

public class Polynom

extends java.lang.Object

Field Summary

protected double[]

coefficients An Array of the coefficients, in ascending power (i.e. beginning with the constant summand)

Constructor Summary

Polynom()
the default constructor creates the nullpolynomial

Polynom(double[] coefficients)
Nullpolynomials (i.e. coefficients.length == 0) are allowed, but not a nullpointer argument!

Polynom(Polynom p)
Copy-Constructor

Method Summary

void	add(Polynom p) adds two polynomials
int	degree()
Complex	eval(Complex z) evaluates the polynomial for a certain complex number
double	getCoefficient(int i)
double[]	getCoefficients()
BaseCalc	getOperationTree() builds and returns the corresponding operational tree for further calculations
void	integrate(double constant) integrates the polynomial analytically, using the argument as integration constant
static void	main(java.lang.String[] args) for testing purposes
void	multiply(double d) multiplication with a number
void	multiply(Polynom p) multiplication with another polynomial
void	setCoefficient(int i, double value)
java.lang.String	toString() for pretty printing: output is of form: X^6 - 3.0X^5 + 2.5X^4 - 0.49999999999999956X^2 + 0.023809523809523885
void	translate(double k) performs the operation f(x) -> f(x+k)

Methods inherited from class java.lang.Object

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

Field Detail

coefficients

protected double[] coefficients

An Array of the coefficients, in ascending power (i.e. beginning with the constant summand)

Constructor Detail

Polynom

public Polynom()

the default constructor creates the nullpolynomial

Polynom

public Polynom(double[] coefficients)

Nullpolynomials (i.e. coefficients.length == 0) are allowed, but not a nullpointer argument!

Polynom

public Polynom(Polynom p)

Copy-Constructor

Method Detail

degree

public int degree()

getCoefficient

public double getCoefficient(int i)

setCoefficient

public void setCoefficient(int i,
                           double value)

getCoefficients

public double[] getCoefficients()

add

public void add(Polynom p)

adds two polynomials

multiply

public void multiply(double d)

multiplication with a number

multiply

public void multiply(Polynom p)

multiplication with another polynomial

translate

public void translate(double k)

performs the operation f(x) -> f(x+k)

eval

public Complex eval(Complex z)

evaluates the polynomial for a certain complex number

integrate

public void integrate(double constant)

integrates the polynomial analytically, using the argument as integration constant

toString

public java.lang.String toString()

for pretty printing: output is of form:

X^6 - 3.0X^5 + 2.5X^4 - 0.49999999999999956X^2 + 0.023809523809523885

Overrides:

toString in class java.lang.Object

getOperationTree

public BaseCalc getOperationTree()

builds and returns the corresponding operational tree for further calculations

main

public static void main(java.lang.String[] args)

for testing purposes