public static void Main(String[] args)
{
MyPolynomial first = new MyPolynomial(new double[] { 2, 0, 0, 1 });
MyPolynomial second = new MyPolynomial(new double[] { 2, 1, 6 });
Console.WriteLine(first);
Console.WriteLine(second);
Console.WriteLine(first.Add(second));
//Console.WriteLine(second.Add(first));
//Console.WriteLine(first.Multiply(second));
//Console.WriteLine(second.Multiply(first));
//Console.WriteLine(first.Evaluate(2));
//Console.WriteLine(second.Evaluate(2));
}
public MyPolynomial Multiply(MyPolynomial input)
{
double[] product = new double[_coeffs.Length + input._coeffs.Length - 1];
for (int i = 0; i < _coeffs.Length; i++)
{
for (int j = 0; j < input._coeffs.Length; j++)
{
product[i + j] += _coeffs[i] * input._coeffs[j];
}
}
return(new MyPolynomial(product));
}
public MyPolynomial Multiply(MyPolynomial another)
{
int a = GetDegree();
int b = another.GetDegree();
int value = ((a + 1) * (b + 1)) + 1;
double[] NewPolynomial = new double[value];
for (int i = 0; i < a + 1; i++)
{
for (int j = 0; j < b + 1; j++)
{
NewPolynomial[i + j] += _coeffs[i] * another._coeffs[j];
}
}
MyPolynomial MultiplyPolynomial = new MyPolynomial(NewPolynomial);
return(MultiplyPolynomial);
}
public MyPolynomial Add(MyPolynomial input)
{
int min = Math.Min(degree, input.degree) + 1;
MyPolynomial bigger = degree > input.degree ? this : input;
double[] sum = new double[bigger.degree + 1];
for (int i = 0; i < min; i++)
{
sum[i] = _coeffs[i] + input._coeffs[i];
}
for (int i = min; i < bigger.degree + 1; i++)
{
sum[i] = bigger._coeffs[i];
}
return(new MyPolynomial(sum));
}
public MyPolynomial Add(MyPolynomial another)
{
int a = GetDegree();
int b = another.GetDegree();
int value;
if (a <= b)
{
value = b + 1;
}
else
{
value = a + 1;
}
double[] NewPolynomial = new double[value];
int i;
for (i = 0; i < a + 1 && i < b + 1; i++)
{
NewPolynomial[i] = _coeffs[i] + another._coeffs[i];
}
for (; i < a + 1; i++)
{
NewPolynomial[i] = _coeffs[i];
}
for (; i < b + 1; i++)
{
NewPolynomial[i] = another._coeffs[i];
}
MyPolynomial SumPolynomial = new MyPolynomial(NewPolynomial);
return(SumPolynomial);
}
