static void Main(string[] args)
{
DiceDist test = 10 * new DiceDist(10) + new DiceDist(10) - 10;
Console.WriteLine(test);
Console.WriteLine($"Expected Value = {test.ExpectedValue}");
Console.WriteLine($"Variance = {test.Variance}");
Console.WriteLine($"Standard Deviation = {test.StdDeviance}");
Console.ReadLine();
}
public static DiceDist NumDivWithRounding(DiceDist d, int q, RoundingType rounding)
{
var dD = new Dictionary <int, int>();
foreach (var kvp in d._distributionDividends)
{
var newKey = Round((double)kvp.Key / q, rounding);
if (dD.ContainsKey(newKey))
{
dD[newKey] += kvp.Value;
}
else
{
dD.Add(newKey, kvp.Value);
}
}
return(new DiceDist(dD, d._divisor));
}
public static DiceDist DiceDiv(DiceDist a, DiceDist b, RoundingType rounding)
{
var dD = new Dictionary <int, int>();
foreach (var kvpa in a._distributionDividends)
{
foreach (var kvpb in b._distributionDividends)
{
var newKey = Round((double)kvpa.Key / kvpb.Key, rounding);
if (dD.ContainsKey(newKey))
{
// a and b are assumed independent, note divisors also multiplied
dD[newKey] += kvpa.Value * kvpb.Value;
}
else
{
dD.Add(newKey, kvpa.Value * kvpb.Value);
}
}
}
return(new DiceDist(dD, a._divisor * b._divisor));
}