GenericGFPoly (Javadocs [I2P+ 2.13.0+]

java.lang.Object
- com.google.zxing.common.reedsolomon.GenericGFPoly

```
final class GenericGFPoly
extends Object
```
Represents a polynomial whose coefficients are elements of a GF. Instances of this class are immutable.
Much credit is due to William Rucklidge since portions of this code are an indirect port of his C++ Reed-Solomon implementation.

Constructor Summary
Constructors
Constructor and Description
GenericGFPoly(GenericGF field, int[] coefficients)

Constructors
Constructor and Description
`GenericGFPoly(GenericGF field, int[] coefficients)`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`(package private) GenericGFPoly`	`addOrSubtract(GenericGFPoly other)` add or subtract.
`(package private) GenericGFPoly[]`	`divide(GenericGFPoly other)` divide.
`(package private) int`	`evaluateAt(int a)` evaluate at.
`(package private) int`	`getCoefficient(int degree)` Get the coefficient.
`(package private) int[]`	`getCoefficients()` Get the coefficients.
`(package private) int`	`getDegree()` Get the degree.
`(package private) boolean`	`isZero()` Whether zero.
`(package private) GenericGFPoly`	`multiply(GenericGFPoly other)` multiply.
`(package private) GenericGFPoly`	`multiply(int scalar)` multiply.
`(package private) GenericGFPoly`	`multiplyByMonomial(int degree, int coefficient)` multiply by monomial.
`String`	`toString()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - GenericGFPoly
```
GenericGFPoly(GenericGF field,
              int[] coefficients)
```
    Parameters:
    field - the GenericGF instance representing the field to use to perform computations
    coefficients - coefficients as ints representing elements of GF(size), arranged from most significant (highest-power term) coefficient to least significant
    Throws:
    IllegalArgumentException - if argument is null or empty, or if leading coefficient is 0 and this is not a constant polynomial (that is, it is not the monomial "0")
- Method Detail
  - addOrSubtract
```
GenericGFPoly addOrSubtract(GenericGFPoly other)
```
    add or subtract.
  - divide
```
GenericGFPoly[] divide(GenericGFPoly other)
```
    divide.
  - evaluateAt
```
int evaluateAt(int a)
```
    evaluate at.
    Returns:
    evaluation of this polynomial at a given point
  - getCoefficient
```
int getCoefficient(int degree)
```
    Get the coefficient.
    Returns:
    coefficient of x^degree term in this polynomial
  - getCoefficients
```
int[] getCoefficients()
```
    Get the coefficients.
  - getDegree
```
int getDegree()
```
    Get the degree.
    Returns:
    degree of this polynomial
  - isZero
```
boolean isZero()
```
    Whether zero.
    Returns:
    true iff this polynomial is the monomial "0"
  - multiply
```
GenericGFPoly multiply(GenericGFPoly other)
```
    multiply.
  - multiply
```
GenericGFPoly multiply(int scalar)
```
    multiply.
  - multiplyByMonomial
```
GenericGFPoly multiplyByMonomial(int degree,
                                 int coefficient)
```
    multiply by monomial.
  - toString
```
public String toString()
```
    Overrides:
    toString in class Object

Class GenericGFPoly

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

GenericGFPoly

Method Detail

addOrSubtract

divide

evaluateAt

getCoefficient

getCoefficients

getDegree

isZero

multiply

multiply

multiplyByMonomial

toString