Operators and Expressions

Output of the program shows round-off errors that can occur in computation of floating point numbers.
#include<stdio.h>
void main()
{
float sum, n, term ;

int count = 1 ;
sum = 0 ;
printf("Enter value of n\n") ;
scanf("%f", &n) ;
term = 1.0/n ;
while( count <= n )
{
sum = sum + term ;
count++ ;
}
printf("Sum = %f\n", sum) ;
getch();
}