declaring a delegate array

We can also declare a delegate array. However, each element of the delegate array must be of same signature in terms of input arguments and return types.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApplication10
    class Program
        delegate double DoubleOp(double x);

        static void Main(string[] args)
            DoubleOp[] operations = new DoubleOp[2];

            operations[0] = Program.MultiplyByTwo;
            operations[1] = Program.getSquare;

            Console.WriteLine( operations[0](10) );

 DoubleOp[] operations = { Program.MultiplyByTwo, Program.getSquare };

            foreach(DoubleOp op in operations)
                Console.WriteLine( op(10) );  


        public static double MultiplyByTwo(double value)
            return value * 2;

        public static double getSquare(double value)
            return value*value;



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