//adds matrixes
public void AddMatrix(Matrix2x2 otherMatrix)
{
double tempE11 = E11 + otherMatrix.E11;
double tempE12 = E12 + otherMatrix.E12;
double tempE21 = E21 + otherMatrix.E21;
double tempE22 = E22 + otherMatrix.E22;
Console.WriteLine("\n" + tempE11 + ", " + tempE12 + "\n" + tempE21 + ", " + tempE22);
}
//subtracts matrixes
public void SubtractMatrix(Matrix2x2 otherMatrix)
{
double tempE11 = E11 - otherMatrix.E11;
double tempE12 = E12 - otherMatrix.E12;
double tempE21 = E21 - otherMatrix.E21;
double tempE22 = E22 - otherMatrix.E22;
Console.WriteLine("\n" + tempE11 + ", " + tempE12 + "\n" + tempE21 + ", " + tempE22);
}
//assignment5
public Matrix2x2 MultiplyMatrix(Matrix2x2 otherMatrix)
{
//creates empty vector to hold result
Matrix2x2 resultMatrix = new Matrix2x2();
//sets result
resultMatrix.E11 = E11 * otherMatrix.E11 + E12 * otherMatrix.E21;
resultMatrix.E12 = E11 * otherMatrix.E12 + E12 * otherMatrix.E22;
resultMatrix.E21 = E21 * otherMatrix.E11 + E22 * otherMatrix.E21;
resultMatrix.E22 = E21 * otherMatrix.E12 + E22 * otherMatrix.E22;
return(resultMatrix);
}
static void Main()
{
//set x and y
double x = 3;
double y = 3;
//set second vector
double xtwo = 3;
double ytwo = 0;
//2x2 matrix user variable getters
double e11;
double e12;
double e21;
double e22;
//second 2x2 matrix values
double twoe11 = 5;
double twoe12 = -3;
double twoe21 = 2;
double twoe22 = 4;
//set numbers to add to x and y
double addX = 1.1;
double addY = 2.2;
//set numbers to add to x and y
double subX = 3.5;
double subY = 2.1;
//set multiplier
double multiplier = 4.3;
//set "lerp by" multiplier
double lerpby = .25;
//set angle
double angle = 45;
//set rotation angle for rotation matrix
double rotangle = 45;
//set matrix scalars
double scaleX = 2;
double scaleY = 3;
//for loop to reset vectors every time
for (int i = 0; i < 13; i++)
{
//implement Vector2D class as myVector
Vector2D myVector = new Vector2D(x, y);
Vector2D myVectortwo = new Vector2D(xtwo, ytwo);
switch (i)
{
case 0:
//writes vector to console
Console.WriteLine("Vector: " + "[" + x + ", " + y + "]");
break;
case 1:
//negates x and writes vector to console
myVector.NegateX();
Console.WriteLine("Negative x: " + "[" + myVector.X + ", " + myVector.Y + "]");
break;
case 2:
//negates y and writes vector to console
myVector.NegateY();
Console.WriteLine("Negative y: " + "[" + myVector.X + ", " + myVector.Y + "]");
break;
case 3:
//adds addX to x and addY to y and writes vector to console
myVector.AddVector(addX, addY);
Console.WriteLine("Added " + addX + " to x (" + x + ") and " + addY + " to y (" + y + "): " + "[" + myVector.X + ", " + myVector.Y + "]");
break;
case 4:
//subtracts subX from x and subY from y and writes vector to console
myVector.SubtractVector(subX, subY);
Console.WriteLine("Subtracted " + subX + " from x (" + x + ") and " + subY + " from y (" + y + "): " + "[" + myVector.X + ", " + myVector.Y + "]");
break;
case 5:
//multiand writes vector to console
myVector.ScalarMultiplication(multiplier);
Console.WriteLine("Multiplied vector [" + x + ", " + y + "] by " + multiplier + ": " + "[" + myVector.X + ", " + myVector.Y + "]");
break;
case 6:
//gets magnitude
Console.WriteLine("The magnitude of the vector [" + x + ", " + y + "] " + "is: " + myVector.GetMagnitude());
break;
case 7:
//gets angle in degrees
Console.WriteLine("The angle in degrees of the vector [" + x + ", " + y + "] is: " + myVector.GetAngleInDegrees());
break;
case 8:
//normalize
myVector.Normalize();
break;
case 9:
//dot product
Console.WriteLine("The dot product between vectors [" + x + ", " + y + "] and [" + xtwo + ", " + ytwo + "] is: " + myVector.GetDotProduct(myVectortwo));
break;
case 10:
//angle between vectors
Console.WriteLine("The angle between vectors [" + x + ", " + y + "] and [" + xtwo + ", " + ytwo + "] is: " + myVectortwo.GetAngleBetweenVector(myVector));
break;
case 11:
//lerp
myVector.Lerp(myVectortwo, lerpby);
break;
case 12:
//rotate
myVector.RotateVector(angle);
break;
}
}
Console.WriteLine("\nStart of assignment 4");
//prompts player for input
Console.WriteLine("Write 4 numbers for a 2x2 matrix:");
Console.Write("1,1:");
e11 = Convert.ToInt32(Console.ReadLine());
Console.Write("1,2:");
e12 = Convert.ToInt32(Console.ReadLine());
Console.Write("2,1:");
e21 = Convert.ToInt32(Console.ReadLine());
Console.Write("2,2:");
e22 = Convert.ToInt32(Console.ReadLine());
//creates matrix
Matrix2x2 matrix = new Matrix2x2(e11, e12, e21, e22);
Matrix2x2 otherMatrix = new Matrix2x2(twoe11, twoe12, twoe21, twoe22);
Matrix2x2 result = matrix.MultiplyMatrix(otherMatrix);
Vector2D myVectorthree = new Vector2D(xtwo, ytwo);
Vector2D vectorresult = matrix.MultiplyVector(myVectorthree);
Console.WriteLine();
//calls matrix
Console.WriteLine("Set Matrix");
matrix.SetMatrix(e11, e12, e21, e22);
Console.WriteLine();
//calls identity matrix
Console.WriteLine("Set Identity Matrix");
matrix.SetIdentityMatrix();
Console.WriteLine();
//calls scaling matrix
Console.WriteLine("Set Scaling Matrix");
matrix.SetScalingMatrix(scaleX, scaleY);
Console.WriteLine();
//calls rotation matrix
Console.WriteLine("Set Rotation Matrix");
matrix.SetRotationMatrixInDegrees(rotangle);
Console.WriteLine();
//calls addmatrix
Console.WriteLine("Add Matrix");
matrix.AddMatrix(otherMatrix);
Console.WriteLine();
//calls subtractmatrix
Console.WriteLine("Subtract Matrix");
matrix.SubtractMatrix(otherMatrix);
Console.WriteLine();
Console.WriteLine("\nStart of assignment 5");
//multiply matricies
Console.WriteLine("\nMultiplying matricies:\n" + e11 + ", " + e12 + "\n" + e21 + ", " + e22 + "\nand\n" + otherMatrix.E11 + ", " + otherMatrix.E12 + "\n" + otherMatrix.E21 + ", " + otherMatrix.E22 + "\n=");
Console.WriteLine(result.E11 + ", " + result.E12 + "\n" + result.E21 + ", " + result.E22);
Console.WriteLine();
//multiply matrix by vector
Console.WriteLine("Multiplying matrix:\n" + e11 + ", " + e12 + "\n" + e21 + ", " + e22 + "\nand vector:\n" + xtwo + "\n" + ytwo + "\n=");
Console.WriteLine(vectorresult.X + "\n" + vectorresult.Y + "\n");
//transposes matrix
Console.WriteLine("Transposing Matrix:");
matrix.Transpose();
Console.WriteLine();
//gets determinant matrix
Console.WriteLine("Getting Determinant Matrix:");
Console.WriteLine(matrix.GetDeterminant() + "\n");
Console.WriteLine("Getting Inverse Matrix:");
matrix.Inverse();
Console.WriteLine();
}
