//}
public GaussMath <T> Difference(GaussMath <T> matrix)
{
GaussMath <T> results = Clone(this);
for (int i = 0; i < RowCount; i++)
{
for (int j = 0; j < ColumnCount; j++)
{
results.Data[i, j] = Absolute.GetAbs((dynamic)Data[i, j] - (dynamic)matrix.Data[i, j]);
}
}
return(results);
}
//Testing simple operations on matrices :)
private static void TestGauss()
{
Fraction[,] numbersA =
{
{ new Fraction(1, 1),
new Fraction(1, 1),
new Fraction(1, 1) },
{ new Fraction(2, 1),
new Fraction(-3, 1),
new Fraction(4, 1) },
{ new Fraction(3, 1),
new Fraction(4, 1),
new Fraction(5, 1) }
};
Fraction[,] numbersX =
{
{ new Fraction(1, 1) },
{ new Fraction(3, 1) },
{ new Fraction(5, 1) }
};
const int testSize = 3;
GaussMath <Fraction> testMatrixA = new GaussMath <Fraction>(testSize);
testMatrixA.Fill(numbersA);
Console.WriteLine(testMatrixA);
const int testColumnCount = 1;
GaussMath <Fraction> testVectorX = new GaussMath <Fraction>(testSize, testColumnCount);
testVectorX.Fill(numbersX);
Console.WriteLine(testVectorX);
GaussMath <Fraction> testVectorB = testMatrixA * testVectorX;
Console.WriteLine("Multiplied matrix:\n" + testVectorB);
GaussMath <Fraction> testMatrixAB = GaussMath <Fraction> .Concatenate(testMatrixA, testVectorB);
Console.WriteLine(testMatrixAB);
testMatrixAB.EliminateGaussian(Choice.Full);
testMatrixAB.BackwardsOperation();
Console.WriteLine("\nEliminated matrix:\n" + testMatrixAB);
testMatrixAB.ShowVector();
}
public static GaussMath <T> operator *(GaussMath <T> leftFactor, GaussMath <T> rightFactor)
{
GaussMath <T> product = new GaussMath <T>(leftFactor.RowCount, rightFactor.ColumnCount);
for (int i = 0; i < leftFactor.RowCount; i++)
{
for (int j = 0; j < rightFactor.ColumnCount; j++)
{
T sum = new T();
for (int k = 0; k < rightFactor.RowCount; k++)
{
dynamic leftValue = leftFactor.Data[i, k];
dynamic rightValue = rightFactor.Data[k, j];
sum += leftValue * rightValue;
}
product.Data[i, j] = sum;
}
}
return(product);
}
public void Execute(Choice choice, GaussMath <T> AB, GaussMath <T> X)
{
GaussMath <T> Matrix = AB;
Stopwatch stopwatch = new Stopwatch();
stopwatch.Start();
Matrix.EliminateGaussian(choice);
Matrix.BackwardsOperation();
stopwatch.Stop();
File.WriteAllText(
$@"C:\Programy\Algorytmy Numeryczne\Gauss\Matrices\Results\{typeof(T)}_{choice}_{Matrix.RowCount}x{Matrix.RowCount}.txt",
"\n" + stopwatch.Elapsed +
"\n" + X.Difference(Matrix)
);
Console.WriteLine($"Finished executing test [{typeof(T)} | {choice}] " +
$"Time: {stopwatch.Elapsed}\n" +
$"Diff: \n{X.Difference(Matrix)}");
}
public static GaussMath <T> Concatenate(GaussMath <T> matrix, GaussMath <T> vector)
{
GaussMath <T> result = new GaussMath <T>(matrix.RowCount,
matrix.ColumnCount + 1);
for (int i = 0; i < matrix.RowCount; i++)
{
for (int j = 0; j < matrix.ColumnCount + 1; j++)
{
if (j == matrix.ColumnCount)
{
result.Data[i, j] = vector.Data[i, 0];
}
else
{
result.Data[i, j] = matrix.Data[i, j];
}
}
}
return(result);
}
public static void Main(string[] args)
{
//TestGauss();
///*
const int size = 20;
//Fraction
var A_MatrixFraction = new GaussMath <Fraction>(size);
A_MatrixFraction.Fill();
var X_VectorFraction = new GaussMath <Fraction>(size, 1);
X_VectorFraction.Fill();
//Fraction operations
var B_VectorFraction = A_MatrixFraction * X_VectorFraction;
var AB_MatrixFraction = GaussMath <Fraction> .Concatenate(A_MatrixFraction, B_VectorFraction);
//float
var A_MatrixFloat = new GaussMath <float>(size);
var X_VectorFloat = new GaussMath <float>(size, 1);
//double
var A_MatrixDouble = new GaussMath <double>(size);
var X_VectorDouble = new GaussMath <double>(size, 1);
//Fill A
for (int i = 0; i < A_MatrixFraction.RowCount; i++)
{
for (int j = 0; j < A_MatrixFraction.ColumnCount; j++)
{
A_MatrixFloat.Data[i, j] = (float)A_MatrixFraction.Data[i, j];
A_MatrixDouble.Data[i, j] = (double)A_MatrixFraction.Data[i, j];
}
}
//Fill X
for (int i = 0; i < X_VectorFraction.RowCount; i++)
{
for (int j = 0; j < X_VectorFraction.ColumnCount; j++)
{
X_VectorFloat.Data[i, j] = (float)X_VectorFraction.Data[i, j];
X_VectorDouble.Data[i, j] = (double)X_VectorFraction.Data[i, j];
}
}
//float operations
var B_VectorFloat = A_MatrixFloat * X_VectorFloat;
var AB_MatrixFloat = GaussMath <float> .Concatenate(A_MatrixFloat, B_VectorFloat);
//double operations
var B_VectorDouble = A_MatrixDouble * X_VectorDouble;
var AB_MatrixDouble = GaussMath <double> .Concatenate(A_MatrixDouble, B_VectorDouble);
Test <float> testFloat = new Test <float>();
Test <double> testDouble = new Test <double>();
Test <Fraction> testFraction = new Test <Fraction>();
Parallel.Invoke(
() => testFloat.Execute(Choice.None, AB_MatrixFloat, X_VectorFloat),
() => testFloat.Execute(Choice.Partial, AB_MatrixFloat, X_VectorFloat),
() => testFloat.Execute(Choice.Full, AB_MatrixFloat, X_VectorFloat),
() => testDouble.Execute(Choice.None, AB_MatrixDouble, X_VectorDouble),
() => testDouble.Execute(Choice.Partial, AB_MatrixDouble, X_VectorDouble),
() => testDouble.Execute(Choice.Full, AB_MatrixDouble, X_VectorDouble),
() => testFraction.Execute(Choice.None, AB_MatrixFraction, X_VectorFraction),
() => testFraction.Execute(Choice.Partial, AB_MatrixFraction, X_VectorFraction),
() => testFraction.Execute(Choice.Full, AB_MatrixFraction, X_VectorFraction)
);
//*/
}
