public static void Execute()
{
// 1.12
var A = new Matrix(new double[,] { { 3, 1, -2 }, { 2, -2, 0 }, { -1, 1, 2 } });
var B = new Matrix(new double[,] { { 1, 1, 1 }, { 1, -1, 1 }, { 0, 1, 2 } });
Console.WriteLine(A.Multiply(B));
Console.WriteLine();
// 1.13
A = new Matrix(new double[,] { { 1, 1, 1 }, { 0, 1, 1 }, { 0, 0, 1 } });
B = new Matrix(new double[,] { { 1, 0, 0 }, { 1, 1, 0 }, { 1, 1, 1 } });
Console.WriteLine(A.Multiply(B));
Console.WriteLine();
// 1.14
A = new Matrix(new double[,] { { 1 }, { 2 }, { 3 }, { 4 } });
B = new Matrix(new double[,] { { 1, 2, 3, 4 } });
Console.WriteLine(A.Multiply(B));
Console.WriteLine();
Console.WriteLine(B.Multiply(A));
Console.WriteLine();
// 1.15
A = new Matrix(new double[,] { { 3, 0 }, { -1, 2 }, { 1, 1 } });
B = new Matrix(new double[,] { { 4, -1 }, { 0, 2 } });
var C = new Matrix(new double[,] { { 1, 4, 2 }, { 3, 1, 5 } });
var test = A.Multiply(B);
Console.WriteLine(A.Multiply(B).Multiply(C));
Console.WriteLine();
Console.WriteLine(A.Multiply(B.Multiply(C)));
Console.WriteLine();
}
