Calculate Summation of this series 1/2 + 2/3 + ...... + x/(x+1)

Programming tips

Test expression

The test expression done on exact statement. The good habit of using test expression on exact or fulfill statement. So do not use floating point numbers for checking for equality in the test expression.

Header file

Missing the inclusion of appropriate header file in c program will generate an error. Such a program may compile but the linker will given an error message as it will not be able to find the functions used in the program.

Iterative statement

The iterative statement is one of the most important and interesting statements in the programming world. An iterative statement is used to repeat the execution of a list of statements, depending on the value of an integer expression.

Specifer

Specifier is a typedef-name and a very sensitive in C programming. Using an incorrect specifier for the data type being read or written will generate a run time error.

Comment

Not putting // before the start of single statement comment is a compiler error. Not putting the */ after the termination of block comment is a compiler error.

Calculate Summation of this series 1/2 + 2/3 + ...... + x/(x+1)


// AHF C PROGRAM SOLVING

//solving here ITERATIVES STATEMENTS type of programming problem

#include<stdio.h>
#include<math.h>
#define pf printf
int main()
{
    int a;

    float i,res=0.0,temp;

    //taking the number to continue loop
    pf("Enter any number: ");
    scanf("%d",&a);

    for(i=1.0;i<=a;i++)
    {
        float temp=0.0;
        temp=i/(i+1);   //calculating as given in the series and assigning temp
        res+=temp;    //value of the temp is adding with res variable
    }

    pf("\nThe summation of the series is: %f",res);

    return 0;
}

OUTPUT:

Enter any number: 10

The summation of the series is: 7.980123