multiplesOf3And5.csx

var mult1 =
    from m in Enumerable.Range(1, 999)
    where m % 3 == 0 || m % 5 == 0
    select m;
Console.WriteLine(mult1.Sum());

Console.WriteLine((from m in Enumerable.Range(1, 999) where m % 3 == 0 || m % 5 == 0 select m).Sum());

var mult2 = Enumerable.Range(1, 999)
    .Where(m => m % 3 == 0 || m % 5 == 0)
    .Sum();
Console.WriteLine(mult2);

Console.WriteLine(Enumerable.Range(1,999).Where(m => m % 3 == 0 || m % 5 == 0).Sum());

var epic1 = Enumerable.Range(1,999999)
    .Select(m => (long)m)
    .Where(m => m % 3 == 0 || m % 5 == 0)
    .Sum();
Console.WriteLine(epic1);

var epic2 = Enumerable.Range(1,999999)
    .Where(m => m % 3 == 0 || m % 5 == 0)
    .Sum(m => (long)m);
Console.WriteLine(epic2);