public void testMult()
{
IntegerPolynomial i1 = new IntegerPolynomial(new int[] { 1368, 2047, 672, 871, 1662, 1352, 1099, 1608 });
IntegerPolynomial i2 = new IntegerPolynomial(new int[] { 1729, 1924, 806, 179, 1530, 1381, 1695, 60 });
LongPolynomial2 a = new LongPolynomial2(i1);
LongPolynomial2 b = new LongPolynomial2(i2);
IntegerPolynomial c1 = i1.Multiply(i2, 2048);
IntegerPolynomial c2 = a.Multiply(b).ToIntegerPolynomial();
Assert.True(c1.coeffs.SequenceEqual(c2.coeffs));
SecureRandom rng = new SecureRandom();
for (int i = 0; i < 10; i++)
{
int N = 2 + rng.NextInt(2000);
i1 = PolynomialGenerator.GenerateRandom(N, 2048);
i2 = PolynomialGenerator.GenerateRandom(N, 2048);
a = new LongPolynomial2(i1);
b = new LongPolynomial2(i2);
c1 = i1.Multiply(i2);
c1.ModPositive(2048);
c2 = a.Multiply(b).ToIntegerPolynomial();
Assert.True(c1.coeffs.SequenceEqual(c2.coeffs));
}
}
public void testMult()
{
ProductFormPolynomial p1 = ProductFormPolynomial.GenerateRandom(N, df1, df2, df3, df3 - 1, new SecureRandom());
IntegerPolynomial p2 = PolynomialGenerator.GenerateRandom(N, q);
IntegerPolynomial p3 = p1.Multiply(p2);
IntegerPolynomial p4 = p1.ToIntegerPolynomial().Multiply(p2);
Assert.AreEqual(p3.ToIntegerPolynomial().coeffs, p4.ToIntegerPolynomial().coeffs);
}