C#: Calculate the sum of the series [ x - x^3 + x^5 - x^7 + x^9 -.....]
C# Sharp For Loop: Exercise-24 with Solution
Write a program in C# Sharp to find the sum of the series [ x - x^3 + x^5 - x^7 + x^9 - ........].
Sample Solution:-
C# Sharp Code:
using System;
public class Exercise24
{
public static void Main()
{
double x,sum,ctr,p,term;
int i,n;
Console.Write("\n\n");
Console.Write("Calculate the sum of the series [ x - x^3 + x^5 - x^7 + x^9 - .....]:\n");
Console.Write("------------------------------------------------------------");
Console.Write("\n\n");
Console.Write("Input the value of x :");
x= Convert.ToInt32(Console.ReadLine());
Console.Write("Input number of terms : ");
n= Convert.ToInt32(Console.ReadLine());
term=1;
sum = 0;
for (i=1,p=1;i<n+1;i++)
{
ctr = Math.Pow(x, p);
sum = sum + ctr*term;
term=term*(-1);
p = p + 2;
}
Console.Write("\nThe sum = {0}\nNumber of terms = {1}\n The value of x = {2}\n",sum,n,x);
}
}
Sample Output:
Calculate the sum of the series [ x - x^3 + x^5 - x^7 + x^9 - .....]: ------------------------------------------------------------ Input the value of x :Input number of terms : The sum = 410 Number of terms = 5 The value of x = 2
Flowchart:
![Flowchart: Calculate the sum of the series [ x - x^3 + x^5 - x^7 + x^9 -.....]](https://www.w3resource.com/w3r_images/csharp-for-loop-exercise-24.png)
C# Sharp Code Editor:
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Next: Write a program in C# Sharp to display the n terms of square natural number and their sum.
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