public static void Check(ClassMatrix a, ClassMatrix b)
{
if (a.height != b.width || a.width != b.height)
{
throw new ArithmeticException();
}
}
static void Main(string[] args)
{
string str = string.Empty;
string str1 = string.Empty;
Console.WriteLine("Enter the height of the matrix A: ", str);
int height = int.Parse(str = Console.ReadLine());
Console.WriteLine("Enter the width of the matrix A: ", str1);
int width = int.Parse(str1 = Console.ReadLine());
ClassMatrix a = new ClassMatrix(height, width);
a.Create();
Console.WriteLine("Enter the height of the matrix B: ", str);
height = int.Parse(str = Console.ReadLine());
Console.WriteLine("Enter the width of the matrix B: ", str1);
width = int.Parse(str1 = Console.ReadLine());
ClassMatrix b = new ClassMatrix(height, width);
b.Create();
try
{
ClassMatrix.Check(a, b);
Console.Write("Matrix A:");
a.Show();
Console.WriteLine("\n");
Console.Write("Matrix B:");
b.Show();
ClassMatrix multiply = a * b;
Console.WriteLine("\n");
Console.Write("A*B:");
multiply.Show();
Console.WriteLine("\n");
Console.Write("A+B:");
ClassMatrix sum = a + b;
sum.Show();
Console.WriteLine("\n");
Console.Write("A-B:");
ClassMatrix minus = a - b;
minus.Show();
}
catch (ArithmeticException e)
{
Console.WriteLine("Exception Message: height of matrix A doesn't match width of matrix B");
}
catch (Exception ex)
{
Console.WriteLine("Exception Message: matrix A and matrix B doesn't have the same size");
}
Console.ReadKey();
}
public static ClassMatrix operator +(ClassMatrix a, ClassMatrix b)
{
ClassMatrix res = new ClassMatrix(a.height, a.width);
for (int i = 0; i < a.height; i++)
{
for (int j = 0; j < a.width; j++)
{
res.matrix[i, j] = a.matrix[i, j] + b.matrix[i, j];
}
}
return(res);
}
public static ClassMatrix operator *(ClassMatrix a, ClassMatrix b)
{
ClassMatrix res = new ClassMatrix(a.height, b.width);
for (int i = 0; i < a.height; i++)
{
for (int j = 0; j < b.width; j++)
{
res.matrix[i, j] = 0;
for (int k = 0; k < b.width; k++)
{
res.matrix[i, j] += a.matrix[i, k] * b.matrix[k, j];
}
}
}
return(res);
}
