public void Calculate_Value0_5_PositiveResults(double expected, params double[] coefficients)
{
double value = 0.5;
var polynomial = new Polynomial(coefficients);
Assert.AreEqual(expected, polynomial.Calculate(value));
}
public bool PolynomialCalculateTest(double[] coefficients, double arg, double expected)
{
var polynomial = new Polynomial(coefficients);
double eps = 0.0001d;
return(polynomial.Calculate(arg) - expected < eps);
}
public void PolynomialTest_Calculate1and2and3()
{
Polynomial ex = new Polynomial(1, 2, 3);
double result = ex.Calculate(2);
Assert.AreEqual(17, result);
}
public void CalculateTests(double expected, double number, params double[] coeffs)
{
// Arrange
Polynomial polynomial = new Polynomial(coeffs);
// Act
double actual = polynomial.Calculate(number);
// Assert
Assert.AreEqual(expected, actual);
}
public void PolynomialWithZeroCoefficientsAndNegativeArgument_Calculate_ResultMustBeNumber()
{
// arrange
var a = new Polynomial(0, 0, 5, 0, -1, -1, 0, 0);
var x = -2;
// action
var result = a.Calculate(x);
// assert
Assert.AreEqual(36, result, 0.0001);
}
public void PolynomialAndZeroArgument_Calculate_ResultMustBeOne()
{
// arrange
var a = new Polynomial(1, 2.5, 5, 0);
var x = 0;
// action
var result = a.Calculate(x);
// assert
Assert.AreEqual(1, result, 0.0001);
}
public void CalculateTest()
{
// Arrange
Polynomial P1 = new Polynomial(2, 3, 4);
int x = 2;
double result = 24;
// Action
var CalcResult = P1.Calculate(x);
// Assert
Assert.AreEqual(result, CalcResult);
}
static void Main(string[] args)
{
Console.WriteLine("Please input points in x y representation.");
Console.WriteLine("Type END to finish.");
int index = 1;
try
{
VandermondeMatrix matrix = new VandermondeMatrix();
while (true)
{
Console.Write($"P#{index++}: ");
String input = Console.ReadLine();
if (input.Trim().ToUpper() == "END" || input.Trim() == "")
{
break;
}
matrix.AddEquation(new Point(input));
}
matrix.toVandermonde();
Console.WriteLine("Resulting polynomial will be of the order - " + Polynomial.CalculateOrder(matrix));
Console.WriteLine("Calculated polynomial:");
double[] coefficients = matrix.GetResults();
Console.WriteLine(Polynomial.Format(coefficients));
Dictionary <int, double> calculatedPolynomial = Polynomial.Calculate(coefficients);
foreach (KeyValuePair <int, double> value in calculatedPolynomial)
{
Console.WriteLine($"f({value.Key}) = {value.Value.ToString("0.000")}");
}
Console.WriteLine("Derivative:\n" + Polynomial.CalculateDerivative(coefficients));
double inititalGuess = 2;
Console.WriteLine("Looking for a root with initial guess 2");
Console.WriteLine("Root found for x = " + Polynomial.CalculateRoot(coefficients, inititalGuess).ToString("0.00000"));
}
catch (Exception e)
{
Console.WriteLine("Error occured: " + e.Message);
}
}
public void operator_multip()
{
// Arrange
Polynomial P1 = new Polynomial(2, 3, 4);
Polynomial P2 = new Polynomial(1, 2, 3);
int x = 2;
double result = 408;
// Action
Polynomial P3 = P1 * P2;
var CalcResult = P3.Calculate(x);
// Assert
Assert.AreEqual(result, CalcResult);
}
public void TestCalculate()
{
var poly = new Polynomial <double, DoubleMathOperations>(new double[3] {
1, 2, 1
});
double result = poly.Calculate(10);
Assert.AreEqual(121, result);
poly = new Polynomial <double, DoubleMathOperations>(new double[3] {
1, 2, 5
});
result = poly.Calculate(10);
Assert.AreEqual(521, result);
}
public double CalculatePolynomial_Test(Polynomial a, double variable) => a.Calculate(variable);
