round function in C programming language

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

pow function in C language

exp function in C language

log function in C language

log10 function in C language

trunc function in C language

 

 

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