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));
}
}
private void MultTest()
{
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();
if (!Compare.AreEqual(c1.Coeffs, c2.Coeffs))
{
throw new Exception("LongPolynomial2 multiply test failed!");
}
// test 10 random polynomials
Random rng = new Random();
for (int i = 0; i < 10; i++)
{
int N = 2 + rng.Next(2000);
i1 = (IntegerPolynomial)PolynomialGeneratorForTesting.GenerateRandom(N, 2048);
i2 = (IntegerPolynomial)PolynomialGeneratorForTesting.GenerateRandom(N, 2048);
a = new LongPolynomial2(i1);
b = new LongPolynomial2(i2);
c1 = i1.Multiply(i2);
c1.ModPositive(2048);
c2 = a.Multiply(b).ToIntegerPolynomial();
if (!Compare.AreEqual(c1.Coeffs, c2.Coeffs))
{
throw new Exception("LongPolynomial2 multiply test failed!");
}
}
}