C round function

The C round function is one of the Math Functions used to return the nearest value (rounded value) of a given number or a specified expression. The syntax of the math round function is

double round(double round);

C round Function Example

The math round Function allows you to find the closest integer value of a given number. In this program, We are going to find the closest integer value of different numbers and display the output.

#include <stdio.h>
#include <math.h>

int main()
{
    printf("\n The Round Value of 0.75    = %.2f ", round(0.75));
    printf("\n The Round Value of 15.25   = %.2f ", round(15.25));
    printf("\n The Round Value of 152.50  = %.2f ", round(152.50));
    
    printf("\n The Round Value of -14.36  = %.2f ", round(-14.36));
    printf("\n The Round Value of -26.82  = %.2f ", round(-26.32));
    printf("\n The Round Value of -90.50  = %.2f \n", round(-90.50));
    
    return 0;
}

C math round Example 2

In this C Programming example, we are allowing the user to enter their own value. Next, this program uses the round function to find the rounded (nearest) value.

#include <stdio.h>
#include <math.h> 

int main()
{
    float number, roundValue;
    
    printf(" Please Enter any Numeric Value to Round :  ");
    scanf("%f", &number);
    
    roundValue = round(number);
    
    printf("\n The Round Value of %.2f = %.4f \n", number, roundValue);
    
    return 0;
}

 Please Enter any Numeric Value to Round :  12.23

 The Round Value of 12.23 = 12.0000