public void InverseTests()
{
var a = new SquareMatrix(4, 3,
3, 2);
var b = new SquareMatrix(-2, 3,
3, -4);
var aInverse = a.Inverse;
Assert.AreEqual(b, aInverse);
var identity2x2 = new IdentityMatrix(2);
var aaInverse = a * aInverse;
Assert.IsTrue(identity2x2 == aaInverse);
var c = new SquareMatrix(1, 2, 3,
0, 4, 5,
1, 0, 6);
var cInverse = c.Inverse;
var d = (1.0 / 22) * new SquareMatrix(24, -12, -2,
5, 3, -5,
-4, 2, 4);
Assert.IsTrue(d == cInverse);
var identity3x3 = new IdentityMatrix(3);
var ccInverse = c * cInverse;
Assert.IsTrue(identity3x3 == ccInverse);
}
public void Verify2X2Matrix_Success()
{
var matrix = new int[, ] {
{ 1, 0 }, { 0, 1 }
};
var actual = new IdentityMatrix().IsIdentityMatrix(matrix);
Assert.AreEqual(true, actual);
}
public void Verify2X2Matrix_Reverse_Failure()
{
var matrix = new int[, ] {
{ 0, 1 }, { 1, 0 }
};
var actual = new IdentityMatrix().IsIdentityMatrix(matrix);
Assert.AreEqual(false, actual);
}
