static void Main(string[] args)
{
int[] koef1 = { 1, 2, 3 };
int[] koef2 = { 4, 5, 6, 7 };
Mnogochlen A = new Mnogochlen(koef1);
Mnogochlen B = new Mnogochlen(koef2);
//вывод многочленов
Console.Write("A= ");
A.show();
Console.WriteLine();
Console.Write("B= ");
B.show();
Console.WriteLine();
try
{
Mnogochlen C = A + B;
Console.Write("A+B= ");
C.show();
Console.WriteLine();
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
try
{
Mnogochlen D = A - B;
Console.Write("A-B= ");
D.show();
Console.WriteLine();
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
try
{
Mnogochlen E = A * B;
Console.Write("A*B= ");
E.show();
Console.ReadLine();
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
}
//вычитание полиномов
public static Mnogochlen operator -(Mnogochlen A, Mnogochlen B)
{
if (A == null || B == null)
{
throw new NullReferenceException();
}
int resultSize;
if (A.koef.Length >= B.koef.Length)
{
resultSize = A.koef.Length;
}
else
{
resultSize = B.koef.Length;
}
int[] newKoef = new int[resultSize];
Mnogochlen C = new Mnogochlen(newKoef);
for (int i = 0; i < C.koef.Length; i++)
{
int a;
if (A.koef.Length <= i)
{
a = 0;
}
else
{
a = A.koef[i];
}
int b;
if (B.koef.Length <= i)
{
b = 0;
}
else
{
b = B.koef[i];
}
C.koef[i] = a - b;
}
return(C);
}
public static Mnogochlen operator *(Mnogochlen A, Mnogochlen B)
{
if (A == null || B == null)
{
throw new NullReferenceException();
}
int size = A.koef.Length + B.koef.Length - 1;
int[] koef = new int[size];
Mnogochlen result = new Mnogochlen(koef);
for (int i = 0; i < A.koef.Length; ++i)
{
for (int j = 0; j < B.koef.Length; ++j)
{
koef[i + j] += A.koef[i] * B.koef[j];
}
}
return(result);
}