On August 24, 2024
By Karmehavannan
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Categories: function in C, pre-define maths function in C

round function in C programming language

In this tutorial, we will learn about round function in C programming language

In the C Programming Language, the round() returns the nearest integer value of the float/double/argument passed to this function.

Declaration

Syntax

The syntax of the round() in C language

double round (double x);

float round(float x);

long double round(long double x);

parameters or Argument

x is the parameter or argument of this function – x is a floating point value for find round value.

Return value

when a value for x is passed, this function returns the rounded value of x

Required Header

In the C Programming Language, the required header file for the round() is

#include <math.h>

round function in C

Example

The following example explains the usage of c language round() function

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

int main()
{    //Define temporary variable
    float i=5.2,j=6.8;
    //calculate and display round value 
    printf("round value of %f is: %f\n",i,round(i));
     printf("round value of %f is: %f\n",j,round(j));
    return 0;
}

When the above program is compiled and run, it will produce the following result

round value of 5.200000 is: 5.000000

round value of 6.800000 is: 7.000000

Similar Functions

Other C programming language functions that are similar to the cosine function

cosh function in C language

sinh function in C language

tanh function in C language

abs function in C language

floor function in C language

ceil function in C language

sqrt function in C language