// non-static methods
public Vector VectorMultiply(Vector operand)
{
int x_temp = this.x, y_temp = this.y, z_temp = this.z;
this.x = y_temp * operand.z - z_temp * operand.y;
this.y = x_temp * operand.z - z_temp * operand.x;
this.z = x_temp * operand.y - y_temp * operand.x;
return this;
}
// static methods
public static Vector VectorMultiply(Vector operand_1, Vector operand_2)
{
int x_res, y_res, z_res;
x_res = operand_1.y * operand_2.z - operand_1.z * operand_2.y;
y_res = operand_1.x * operand_2.z - operand_1.z * operand_2.x;
z_res = operand_1.x * operand_2.y - operand_1.y * operand_2.x;
return new Vector(x_res, y_res, z_res);
}
static void Main(string[] args)
{
//using static method
Hello();
// array
int[] x = new int[5] /* optional */ {1, 2, 3, 4, 5};
x[4] = 1;
for (int i = 0; i < x.Length; ++i)
{
Console.WriteLine(x[i]);
}
// array of arrays
int[][] matrix = new int[2][];
for (int i = 0; i < matrix.Length; ++i)
{
matrix[i] = new int[i + 1];
}
matrix[1][0] = 1;
// matrix
int[,] matrix_2 = new int[2, 2];
matrix_2[1, 1] = 7;
// var (like auto in C++)
var pi = Math.Atan(1) * 4;
object z = pi;
double q = (double)z;
Console.WriteLine(q);
// wait for user's input for exit
Vector vector_test1 = new Vector(0, 0, 1), vector_test2 = new Vector(1, 0, 0);
int scalar_value = Vector.ScalarMultiply(vector_test1, vector_test2);
Vector vector_test3 = Vector.VectorMultiply(vector_test1, vector_test2);
Console.WriteLine(scalar_value);
vector_test3.Print();
Console.ReadKey();
}
public int ScalarMultiply(Vector operand)
{
int result;
result = this.x * operand.x + this.y * operand.y + this.z * operand.z;
return result;
}
public static int ScalarMultiply(Vector operand_1, Vector operand_2)
{
int result;
result = operand_1.x * operand_2.x + operand_1.y * operand_2.y + operand_1.z * operand_2.z;
return result;
}
