public void ShouldDivide()
{
try
{
MatLib.divide(1, 0);
Assert.Fail("Chyba, delenie nulou.");
}
catch
{
}
try
{
MatLib.divide(-549.41268, 0);
Assert.Fail("Chyba, delenie nulou.");
}
catch
{
}
Assert.AreEqual(1, MatLib.divide(1, 1));
Assert.AreEqual(100, MatLib.divide(100, 1));
Assert.AreEqual(0.01, MatLib.divide(1, 100), Accuracy);
Assert.AreEqual(5, MatLib.divide(50, 10));
Assert.AreEqual(-5, MatLib.divide(50, -10));
Assert.AreEqual(5, MatLib.divide(-50, -10));
Assert.AreEqual(0, MatLib.divide(0, 10));
Assert.AreEqual(10, MatLib.divide(5, 0.5), Accuracy);
Assert.AreEqual(100, MatLib.divide(1, 0.01), Accuracy);
Assert.AreEqual(0.6480482716, MatLib.divide(4.4893192, 6.92744568), Accuracy);
Assert.AreNotEqual(0.6, MatLib.divide(4.4893192, 6.92744568), Accuracy);
Assert.AreNotEqual(0.4, MatLib.divide(0.1601, 4));
Assert.AreNotEqual(10, MatLib.divide(0, 10));
}
/**
* @brief Výpočet smerodajnej odchýlky
*
* @param list Zoznam double, z ktorého vypočítať smerodajnú odchýlku
* @return Smerodajná odchýlka
*/
public static double GetStandartDeviation(List <double> list)
{
int N = list.Count;
double tmp = MatLib.subtract(GetSumSqr(list), MatLib.multiply(N, MatLib.square(GetArithmeticMean(list))));
try
{
tmp = MatLib.divide(tmp, N - 1);
}
catch (DivideByZeroException e)
{
Console.WriteLine("{0}", e.Message);
Console.WriteLine("Press any key to continue . . .");
Console.Read();
Environment.Exit(-1);
}
tmp = MatLib.sqrt(tmp);
return(tmp);
}
/**
* @brief Výpočet aritmetického priemeru
*
* @param list Zoznam double, z ktorého vypočítať priemer
* @return Aritmetický priemer
*/
public static double GetArithmeticMean(List <double> list)
{
int N = list.Count;
double res = 0, sum = 0;
for (int i = 0; i < N; i++)
{
sum = MatLib.add(sum, list[i]);
}
try
{
res = MatLib.divide(sum, N);
}
catch (DivideByZeroException e)
{
Console.WriteLine("{0}", e.Message);
Console.WriteLine("Press any key to continue . . .");
Console.Read();
Environment.Exit(-1);
}
return(res);
}
