public class Test { public static void Main() { int n; double x, s=0; Console.Write("n = "); n = int.Parse(Console.ReadLine()); Console.Write("x = "); x = double.Parse(Console.ReadLine()); for (int i=1; i <= n; i++) s = x*x/(2*i); Console.WriteLine("s = {0}", s); Console.ReadKey(); } }
2. using System;
public class Test { public static void Main() { int n, i=0; double x, s=0; Console.Write("n = "); n = int.Parse(Console.ReadLine()); Console.Write("x = "); x = double.Parse(Console.ReadLine()); while (i<n){ i++; s = x*x/(2*i); } Console.WriteLine("s = {0}", s); Console.ReadKey(); } }
3. using System;
public class Test { public static void Main() { int n, i=0; double x, s=0; Console.Write("n = "); n = int.Parse(Console.ReadLine()); Console.Write("x = "); x = double.Parse(Console.ReadLine()); do { i++; s = x*x/(2*i); } while (i<n); Console.WriteLine("s = {0}", s); Console.ReadKey(); } }