IF - ELSE STATEMENT

If - Else Statement :

    Syntax :

       if (test expression)
             {
             True-block statement(s)
             }
       else
            {
            False-block statement(s)
            }
       statement-x

Problem :
  
             A program to evaluate the power series.
        

                                    e^x= 1 + x + x^2/2! + x^2/3! + ⋯ + x^n/n!  , 0 < x < 1

Program Code :

         #define ACCURACY 0.0001
       
         main()
          {
            int n, count;
            float x, term, sum;
            printf(“Enter value of x:”);
            scanf(“%f”, &x);
            n=term=sum=count=l;
            while (n <= 100)
               {
                 term = term * x/n;
                 sum = sum + term;
                 count = count + 1;
                 if (term < ACCURACY)
                      n= 999;
                 else
                      n = n + 1;
               }
            printf(“Terms = %d SUM = %f \n”, count, sum);
          }



 Output :

             Enter value of x:0
             Terms = 2 sum = 1.000000
             Enter value of x:0.1
             Terms = 5 sum = 1.105171
             Enter value of x:0.5
             Terms = 7 sum = 1.648720

             Enter value of x:0.75
             Terms = 8 sum = 2.116997
             Enter value of x:0.99
             Terms = 9 sum = 2.691232
             Enter value of x:1
             Terms = 9 sum = 2.718279