Пример #1
0
		public void GetDeterminant()
		{
			matrix = new Matrix(1, 0, 0, 0, 0, 1, 2, 1, 0, 2, 1, 3, 0, 2, 1, 1);
			Assert.AreEqual(6, matrix.GetDeterminant());
		}
Пример #2
0
		public void TestDeterminant4()
		{
			var m = Matrix.GetIdentity(4);

			Assert.AreEqual(1, m.GetDeterminant());

			m.SetRow(0, 1, 0, 0, 0);
			m.SetRow(1, 0, 1, 0, 0);
			m.SetRow(2, 0, 0, 1, 0);
			m.SetRow(3, 0, 0, 5, 0);

			Assert.AreEqual(0, m.GetDeterminant());

			m = new Matrix(new float[,]
			               	{
			               		{1, 2, 3, 4},
			               		{8, 7, 6, 5},
			               		{10, 9, 11, 12},
			               		{14, 15, 13, 16}
			               	});

			Assert.AreEqual(-108, m.GetDeterminant());
		}
Пример #3
0
		public void TestDeterminant3()
		{
			var m = Matrix.GetIdentity(3);

			Assert.AreEqual(1, m.GetDeterminant());

			m.SetRow(0, 1, 0, 0);
			m.SetRow(1, 0, 1, 0);
			m.SetRow(2, 0, 5, 0);

			Assert.AreEqual(0, m.GetDeterminant());

			m = new Matrix(new float[,]
			               	{
			               		{1, 2, 3},
			               		{6, 5, 4},
			               		{8, 7, 9}
			               	});

			Assert.AreEqual(1*5*9 + 2*4*8 + 3*7*6 - 8*5*3 - 7*4*1 - 9*2*6, m.GetDeterminant());
		}
Пример #4
0
		public void TestDeterminant2()
		{
			var m = Matrix.GetIdentity(2);

			Assert.AreEqual(1, m.GetDeterminant());

			m.SetRow(0, 1, 0);
			m.SetRow(1, 5, 0);

			Assert.AreEqual(0, m.GetDeterminant());

			m = new Matrix(new float[,]
			               	{
			               		{1, 2},
			               		{4, 3}
			               	});

			Assert.AreEqual(1*3 - 2*4, m.GetDeterminant());
		}
Пример #5
0
		public void TestDeterminant1()
		{
			var m = Matrix.GetIdentity(1);

			Assert.AreEqual(1, m.GetDeterminant());

			m.SetRow(0, 0);

			Assert.AreEqual(0, m.GetDeterminant());

			m = new Matrix(new float[,]
			               	{
			               		{2}
			               	});

			Assert.AreEqual(2, m.GetDeterminant());
		}
Пример #6
0
		public void TestDeterminant()
		{
			try
			{
				var m = new Matrix(3, 2);
				m.GetDeterminant();
				Assert.Fail("Expected an exception");
			}
			catch (ArgumentException) {}

			try
			{
				var m = Matrix.GetIdentity(5);
				m.GetDeterminant();
				Assert.Fail("Expected an exception");
			}
			catch (NotImplementedException) {}
		}