using System;

namespace Science.Mathematics
{
	/// <summary>
	/// A function is a relation that uniquely associates 
	/// members of one set with members of another set. 
	/// More formally, a function from A to B is an object f 
	/// such that every a in A is uniquely associated with 
	/// an object f(a) in B. A function is therefore 
	/// a many-to-one (or sometimes one-to-one) relation. 
	/// </summary>
	public class Function
	{
		public  Function() 
		{
		}

        public delegate void ToVoid<T>(T x);
        public delegate void ToVoid<T, U>(T x, U y);
        public delegate void ToVoid<T, U, V>(T x, U y, V z);
        public delegate void ToVoid<T, U, V, W>(T x, U y, V z, W t);

        public delegate R ToLastType<R>();
        public delegate R ToLastType<T, R>(T x);
        public delegate R ToLastType<T, U, R>(T x, U y);
        public delegate R ToLastType<T, U, V, R>(T x, U y, V z);
        public delegate R ToLastType<T, U, V, W, R>(T x, U y, V z, W t); 
	}
}