static public matrix operator *(matrix m1, matrix m2)
{
if (m1.c != m2.r)
{
throw new WrongMatrixSizeException($"\nError: \nCan't multiply matricies.\nThe number of columns of the first matrix must be equal to the number of rows of the second matrix ({m1.c} != {m2.r})\n");
}
double[][] z = new double[m1.x.Length][];
for (int i = 0; i < m1.r; i++)
{
z[i] = new double[m2.c];
for (int j = 0; j < m2.c; j++)
{
for (int k = 0; k < m1.c; k++)
{
z[i][j] += m1.x[i][k] * m2.x[k][j];
}
}
}
matrix m = new matrix(z);
return(m);
}
static void Main(string[] args)
{
Console.WriteLine("Enter the size of first matrix:");
string[] n1 = Console.ReadLine().Trim().Split();
matrix m1 = new matrix(formMatrix(int.Parse(n1[0]), int.Parse(n1[1])));
Console.WriteLine("\nEnter the size of second matrix:");
string[] n2 = Console.ReadLine().Trim().Split();
matrix m2 = new matrix(formMatrix(int.Parse(n2[0]), int.Parse(n2[1])));
try
{
Console.WriteLine($"\nm1 + m2 = \n{m1 + m2}");
} catch (WrongMatrixSizeException ex)
{
Console.WriteLine(ex.Message);
}
try
{
Console.WriteLine($"m1 - m2 = \n{m1 - m2}");
}
catch (WrongMatrixSizeException ex)
{
Console.WriteLine(ex.Message);
}
try
{
Console.WriteLine($"m1 * m2 = \n{m1 * m2}");
}
catch (WrongMatrixSizeException ex)
{
Console.WriteLine(ex.Message);
}
}
