Package com.google.zxing.pdf417.decoder.ec

Class ModulusPoly

java.lang.Object

com.google.zxing.pdf417.decoder.ec.ModulusPoly

final class ModulusPoly
extends java.lang.Object

Field Summary

Fields

Modifier and Type	Field	Description
private int[]	coefficients
private ModulusGF	field

Constructor Summary

Constructors

Constructor	Description
ModulusPoly(ModulusGF field, int[] coefficients)

Method Summary

Modifier and Type	Method	Description
(package private) ModulusPoly	add(ModulusPoly other)
(package private) int	evaluateAt(int a)
(package private) int	getCoefficient(int degree)
(package private) int[]	getCoefficients()
(package private) int	getDegree()
(package private) boolean	isZero()
(package private) ModulusPoly	multiply(int scalar)
(package private) ModulusPoly	multiply(ModulusPoly other)
(package private) ModulusPoly	multiplyByMonomial(int degree, int coefficient)
(package private) ModulusPoly	negative()
(package private) ModulusPoly	subtract(ModulusPoly other)
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

field

private final ModulusGF field

coefficients

private final int[] coefficients

Constructor Detail

ModulusPoly

ModulusPoly(ModulusGF field,
            int[] coefficients)

Method Detail

getCoefficients

int[] getCoefficients()

getDegree

int getDegree()

Returns:

degree of this polynomial

isZero

boolean isZero()

Returns:

true iff this polynomial is the monomial "0"

getCoefficient

int getCoefficient(int degree)

Returns:

coefficient of x^degree term in this polynomial

evaluateAt

int evaluateAt(int a)

Returns:

evaluation of this polynomial at a given point

add

ModulusPoly add(ModulusPoly other)

subtract

ModulusPoly subtract(ModulusPoly other)

multiply

ModulusPoly multiply(ModulusPoly other)

negative

ModulusPoly negative()

multiply

ModulusPoly multiply(int scalar)

multiplyByMonomial

ModulusPoly multiplyByMonomial(int degree,
                               int coefficient)

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object