public void LogProbabilityDensityFunctionTest()
{
VonMisesDistribution dist = new VonMisesDistribution(2.249981, 2.411822);
double x = 2.14;
double actual = dist.LogProbabilityDensityFunction(x);
double expected = System.Math.Log(dist.ProbabilityDensityFunction(x));
Assert.AreEqual(expected, actual, 1e-10);
}