program toward print sum regarding series in C# using loops

C# program toward print sum regarding series

Program Statement:

Write a program toward display the sum regarding the following series using loop.

1*x + 2*x2 + 3*x3 + 4*x4 + 5*x5 + … + n*xn

Solution:

 static void Main(string[] args)
        {
            int j, n = 1, x, lastn, sum = 0, prod = 1;
            Console.WriteLine("Enter last digit:");
                lastn=Convert.ToInt32(Console.ReadLine());
                Console.WriteLine("Enter value regarding x:");
                x = Convert.ToInt32(Console.ReadLine());
                beneficial to (j = 1; j <= lastn; j++)
                {
                    n = n * x;
                    prod = n * j;
                    sum = sum + prod;
                }
                Console.WriteLine("Sum regarding Series 1*x + 2*x2 + 3*x3 + 4*x4 + 5*x5 + … + n*xn when n=:  " + n +" furthermore x= "+ x+ "sum= "+ sum);
                Console.ReadLine();
        }