public void GetRow()
{
Matrix33D m = new Matrix33D(columnMajor, MatrixOrder.ColumnMajor);
Assert.AreEqual(new Vector3D(1.0, 2.0, 3.0), m.GetRow(0));
Assert.AreEqual(new Vector3D(4.0, 5.0, 6.0), m.GetRow(1));
Assert.AreEqual(new Vector3D(7.0, 8.0, 9.0), m.GetRow(2));
}
public void MultiplyMatrix()
{
Matrix33D m = new Matrix33D(12, 23, 45,
67, 89, 90,
43, 65, 87);
Assert.AreEqual(Matrix33D.Zero, Matrix33D.Multiply(m, Matrix33D.Zero));
Assert.AreEqual(Matrix33D.Zero, Matrix33D.Multiply(Matrix33D.Zero, m));
Assert.AreEqual(m, Matrix33D.Multiply(m, Matrix33D.Identity));
Assert.AreEqual(m, Matrix33D.Multiply(Matrix33D.Identity, m));
Assert.IsTrue(Matrix33D.AreNumericallyEqual(Matrix33D.Identity, Matrix33D.Multiply(m, m.Inverse)));
Assert.IsTrue(Matrix33D.AreNumericallyEqual(Matrix33D.Identity, Matrix33D.Multiply(m.Inverse, m)));
Matrix33D m1 = new Matrix33D(columnMajor, MatrixOrder.ColumnMajor);
Matrix33D m2 = new Matrix33D(12, 23, 45,
67, 89, 90,
43, 65, 87);
Matrix33D result = Matrix33D.Multiply(m1, m2);
for (int column = 0; column < 3; column++)
{
for (int row = 0; row < 3; row++)
{
Assert.AreEqual(Vector3D.Dot(m1.GetRow(row), m2.GetColumn(column)), result[row, column]);
}
}
}
public void SetRow()
{
Matrix33D m = new Matrix33D(columnMajor, MatrixOrder.ColumnMajor);
m.SetRow(0, new Vector3D(0.1, 0.2, 0.3));
Assert.AreEqual(new Vector3D(0.1, 0.2, 0.3), m.GetRow(0));
Assert.AreEqual(new Vector3D(4.0, 5.0, 6.0), m.GetRow(1));
Assert.AreEqual(new Vector3D(7.0, 8.0, 9.0), m.GetRow(2));
m.SetRow(1, new Vector3D(0.4, 0.5, 0.6));
Assert.AreEqual(new Vector3D(0.1, 0.2, 0.3), m.GetRow(0));
Assert.AreEqual(new Vector3D(0.4, 0.5, 0.6), m.GetRow(1));
Assert.AreEqual(new Vector3D(7.0, 8.0, 9.0), m.GetRow(2));
m.SetRow(2, new Vector3D(0.7, 0.8, 0.9));
Assert.AreEqual(new Vector3D(0.1, 0.2, 0.3), m.GetRow(0));
Assert.AreEqual(new Vector3D(0.4, 0.5, 0.6), m.GetRow(1));
Assert.AreEqual(new Vector3D(0.7, 0.8, 0.9), m.GetRow(2));
}
public void MultiplyVector()
{
Vector3D v = new Vector3D(2.34, 3.45, 4.56);
Assert.AreEqual(v, Matrix33D.Multiply(Matrix33D.Identity, v));
Assert.AreEqual(Vector3D.Zero, Matrix33D.Multiply(Matrix33D.Zero, v));
Matrix33D m = new Matrix33D(12, 23, 45,
67, 89, 90,
43, 65, 87);
Assert.IsTrue(Vector3D.AreNumericallyEqual(v, Matrix33D.Multiply(m * m.Inverse, v)));
for (int i = 0; i < 3; i++)
Assert.AreEqual(Vector3D.Dot(m.GetRow(i), v), Matrix33D.Multiply(m, v)[i]);
}
public void GetRowException2()
{
Matrix33D m = new Matrix33D(columnMajor, MatrixOrder.ColumnMajor);
m.GetRow(3);
}
public void MultiplyVectorOperator()
{
Vector3D v = new Vector3D(2.34, 3.45, 4.56);
Assert.AreEqual(v, Matrix33D.Identity * v);
Assert.AreEqual(Vector3D.Zero, Matrix33D.Zero * v);
Matrix33D m = new Matrix33D(12, 23, 45,
67, 89, 90,
43, 65, 87);
Assert.IsTrue(Vector3D.AreNumericallyEqual(v, m * m.Inverse * v));
for (int i = 0; i < 3; i++)
Assert.AreEqual(Vector3D.Dot(m.GetRow(i), v), (m * v)[i]);
}
public void MultiplyMatrixOperator()
{
Matrix33D m = new Matrix33D(12, 23, 45,
67, 89, 90,
43, 65, 87);
Assert.AreEqual(Matrix33D.Zero, m * Matrix33D.Zero);
Assert.AreEqual(Matrix33D.Zero, Matrix33D.Zero * m);
Assert.AreEqual(m, m * Matrix33D.Identity);
Assert.AreEqual(m, Matrix33D.Identity * m);
Assert.IsTrue(Matrix33D.AreNumericallyEqual(Matrix33D.Identity, m * m.Inverse));
Assert.IsTrue(Matrix33D.AreNumericallyEqual(Matrix33D.Identity, m.Inverse * m));
Matrix33D m1 = new Matrix33D(columnMajor, MatrixOrder.ColumnMajor);
Matrix33D m2 = new Matrix33D(12, 23, 45,
67, 89, 90,
43, 65, 87);
Matrix33D result = m1 * m2;
for (int column = 0; column < 3; column++)
for (int row = 0; row < 3; row++)
Assert.AreEqual(Vector3D.Dot(m1.GetRow(row), m2.GetColumn(column)), result[row, column]);
}
public void GetRowException2()
{
Matrix33D m = new Matrix33D(columnMajor, MatrixOrder.ColumnMajor);
m.GetRow(3);
}
public void GetRow()
{
Matrix33D m = new Matrix33D(columnMajor, MatrixOrder.ColumnMajor);
Assert.AreEqual(new Vector3D(1.0, 2.0, 3.0), m.GetRow(0));
Assert.AreEqual(new Vector3D(4.0, 5.0, 6.0), m.GetRow(1));
Assert.AreEqual(new Vector3D(7.0, 8.0, 9.0), m.GetRow(2));
}
public void SetRow()
{
Matrix33D m = new Matrix33D(columnMajor, MatrixOrder.ColumnMajor);
m.SetRow(0, new Vector3D(0.1, 0.2, 0.3));
Assert.AreEqual(new Vector3D(0.1, 0.2, 0.3), m.GetRow(0));
Assert.AreEqual(new Vector3D(4.0, 5.0, 6.0), m.GetRow(1));
Assert.AreEqual(new Vector3D(7.0, 8.0, 9.0), m.GetRow(2));
m.SetRow(1, new Vector3D(0.4, 0.5, 0.6));
Assert.AreEqual(new Vector3D(0.1, 0.2, 0.3), m.GetRow(0));
Assert.AreEqual(new Vector3D(0.4, 0.5, 0.6), m.GetRow(1));
Assert.AreEqual(new Vector3D(7.0, 8.0, 9.0), m.GetRow(2));
m.SetRow(2, new Vector3D(0.7, 0.8, 0.9));
Assert.AreEqual(new Vector3D(0.1, 0.2, 0.3), m.GetRow(0));
Assert.AreEqual(new Vector3D(0.4, 0.5, 0.6), m.GetRow(1));
Assert.AreEqual(new Vector3D(0.7, 0.8, 0.9), m.GetRow(2));
}