/// <summary>
/// Testa a deomposição sequencial relativa à matriz.
/// </summary>
/// <param name="target">O algoritmo.</param>
/// <param name="matrix">A matriz.</param>
private void TestDecomposition(
ATriangDiagSymmMatrixDecomp <Fraction <int> > target,
ISquareMathMatrix <Fraction <int> > matrix)
{
// Execução do algoritmo.
var decomposition = target.Run(
matrix);
// Calcula o valor esperado.
var matrixFactory = new ArrayMathMatrixFactory <Fraction <int> >();
var matrixMultiplicaton = new MatrixMultiplicationOperation <Fraction <int> >(
matrixFactory,
target.Field,
target.Field);
var actual = new TransposeMatrix <Fraction <int> >(decomposition.UpperTriangularMatrix)
as IMatrix <Fraction <int> >;
actual = matrixMultiplicaton.Multiply(actual, decomposition.DiagonalMatrix);
actual = matrixMultiplicaton.Multiply(actual, decomposition.UpperTriangularMatrix);
// Valida as asserções.
Assert.AreEqual(matrix.GetLength(0), actual.GetLength(0));
Assert.AreEqual(matrix.GetLength(1), actual.GetLength(1));
for (int i = 0; i < actual.GetLength(0); ++i)
{
for (int j = 0; j < actual.GetLength(1); ++j)
{
Assert.AreEqual(matrix[i, j], actual[i, j]);
}
}
}
public void Run_TriangDiagSymmDecompNoInverse()
{
// Definição dos domínios e fábricas.
var integerDomain = new IntegerDomain();
var fractionField = new FractionField <int>(integerDomain);
// Definição dos algoritmos.
var target = new TriangDiagSymmDecompInverseAlg <Fraction <int> >();
var triangDecomp = new ParallelTriangDiagSymmMatrixDecomp <Fraction <int> >(fractionField);
var arraySquareMatrixFactory = new ArraySquareMatrixFactory <Fraction <int> >();
var arrayMatrixFactory = new ArrayMathMatrixFactory <Fraction <int> >();
// A matriz
var matrix = this.GetSingularMatrix(integerDomain);
// Cálculos
var triangDiagDecomp = triangDecomp.Run(
matrix);
var inverseMatrix = target.Run(
triangDiagDecomp,
arraySquareMatrixFactory,
fractionField);
// Verificação dos valores.
var expected = ArrayMathMatrix <Fraction <int> > .GetIdentity(3, fractionField);
var matrixMultiplication = new MatrixMultiplicationOperation <Fraction <int> >(
arrayMatrixFactory,
fractionField,
fractionField);
var actual = matrixMultiplication.Multiply(inverseMatrix, matrix);
for (int i = 0; i < 3; ++i)
{
for (int j = 0; j < 3; ++j)
{
Assert.AreEqual(expected[i, j], actual[i, j]);
}
}
}
