public void GetValue_ExponentialFunction_BenchmarkResult(IOneDimNumericalConstAbscissaIntegratorAlgorithm numericalIntegrator)
{
double lowerBound = 1.0;
double upperBound = 10.0;
Assume.That(numericalIntegrator.TrySetBounds(lowerBound, upperBound) == true, String.Format("1-dimensional Integrator {0} does not support individual lower/upper bounds", numericalIntegrator.Factory.Name.String));
numericalIntegrator.FunctionToIntegrate = (x_k, k) => Math.Exp(x_k);
double expected = Math.Exp(upperBound) - Math.Exp(lowerBound);
double actual = numericalIntegrator.GetValue();
Assert.That(actual, Is.EqualTo(expected).Within(1E-5), String.Format("1-dimensional integrator {0}.", numericalIntegrator.Factory.Name.String));
}
public void GetValue_ThreeTimesXSquare_BenchmarkResult(IOneDimNumericalConstAbscissaIntegratorAlgorithm numericalIntegrator)
{
double lowerBound = 1.0;
double upperBound = 10.0;
Assume.That(numericalIntegrator.TrySetBounds(lowerBound, upperBound) == true, String.Format("1-dimensional Integrator {0} does not support individual lower/upper bounds", numericalIntegrator.Factory.Name.String));
var xValues = numericalIntegrator.Abscissas.ToArray();
var individualTestValues = new double[xValues.Length];
numericalIntegrator.FunctionToIntegrate = (x_k, k) => 3.0 * x_k * x_k;
double expected = upperBound * upperBound * upperBound - lowerBound * lowerBound * lowerBound;
double actual = numericalIntegrator.GetValue();
Assert.That(actual, Is.EqualTo(expected).Within(1E-5), String.Format("1-dimensional integrator {0}.", numericalIntegrator.Factory.Name.String));
}