http://www.bouncycastle.org/java.html: The Bouncy Castle Crypto package is a Java implementation of cryptographic algorithms. This jar contains JCE provider and lightweight API for the Bouncy Castle Cryptography APIs for JDK 1.5 to JDK 1.8.
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package org.bouncycastle.pqc.math.ntru.polynomial;

import java.math.BigInteger;


Contains a resultant and a polynomial rho such that
res = rho*this + t*(x^n-1) for some integer t.

See Also:
/**
 * Contains a resultant and a polynomial <code>rho</code> such that
 * <code>res = rho*this + t*(x^n-1) for some integer t</code>.
 *
 * @see IntegerPolynomial#resultant()
 * @see IntegerPolynomial#resultant(int)
 */
public class Resultant
{
    
A polynomial such that res = rho*this + t*(x^n-1) for some integer t

/**
     * A polynomial such that <code>res = rho*this + t*(x^n-1) for some integer t</code>
     */
    public BigIntPolynomial rho;
    
Resultant of a polynomial with x^n-1

/**
     * Resultant of a polynomial with <code>x^n-1</code>
     */
    public BigInteger res;

    Resultant(BigIntPolynomial rho, BigInteger res)
    {
        this.rho = rho;
        this.res = res;
    }
}