public void TestCalculateFunctionValueAtXEqual2()
{
decimal[] functionParameters = new decimal[] { 2.0m, 4.0m, 6.0m };
decimal x = 2.0m;
MetodaNewtona form = new MetodaNewtona();
decimal result = form.CalculateFunctionValueAtX(functionParameters, x);
Assert.AreEqual(22.0m, result);
}
public void TestCalculateDerivative1()
{
decimal[] functionParameters = new decimal[] { -3.0m, 2.0m, 6.0m, 5.0m };
MetodaNewtona form = new MetodaNewtona();
decimal[] result = form.CalculateDerivative(functionParameters);
decimal[] result1 = new decimal[] { 4.0m, -9.0m, 6.0m };
CollectionAssert.AreEquivalent(result1, result);
}
public void TestIsResultCorrectFalse()
{
decimal[] functionParameters = new decimal[] { 1.0m, 0.0m, 1.0m };
decimal zeroPlace = 2.0m;
decimal epsilon = 0.000001m;
MetodaNewtona form = new MetodaNewtona();
bool result = form.IsResultCorrect(functionParameters, zeroPlace, epsilon);
Assert.IsFalse(result);
}
public void TestCalculateZeroPlace1()
{
decimal[] functionParameters = new decimal[] { -4.0m, 9.0m, 3.0m };
decimal startPointX = 1.5m;
decimal epsilon = 0.000001m;
decimal delta = 0.001m;
int iterations = 100;
MetodaNewtona form = new MetodaNewtona();
decimal result = form.CalculateZeroPlace(functionParameters, startPointX, epsilon, delta, iterations);
Assert.AreEqual(2.5447271722282598013745554193m, result);
}
public void TestCalculateZeroPlace()
{
decimal[] functionParameters = new decimal[] { -3.0m, 2.0m, 4.0m };
decimal startPointX = 1.4m;
decimal epsilon = 0.001m;
decimal delta = 0.000001m;
int iterations = 100;
MetodaNewtona form = new MetodaNewtona();
decimal result = form.CalculateZeroPlace(functionParameters, startPointX, epsilon, delta, iterations);
Assert.AreEqual(1.5351837588702392293401098083m, result);
}
public void TestCalculateTangent()
{
decimal[] derivativeFunctionParameters = new decimal[] { 2.0m, -2.0m };
decimal pointX = 3.0m;
decimal pointY = 4.0m;
decimal[] expectedResult = new decimal[] { 4.0m, -8.0m };
MetodaNewtona form = new MetodaNewtona();
decimal[] result = form.CalculateTangent(derivativeFunctionParameters, pointX, pointY);
CollectionAssert.AreEquivalent(expectedResult, result);
}
