On August 24, 2024
By Karmehavannan
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Categories: function in C, pre-define maths function in C
Tags: “math.h” header file, C language

floor function in C programming language

We will learn about floor function in C programming language

In the C programming Language, the floor() function returns the nearest integer value which is less than or equal to the value for floating point argument to this function

Declaration

Syntax

The syntax of the floor() in the C programming Language

double floor(double x);

parameters or Argument

x is the parameter or argument of this function( x is a floating point value).

Return value

when a value for x is passed, this is returns the floor value of x, largest integer value which is less than or equal to the passed value

Required Header

In the C programming Language, the required header file for floor() is

#include <math.h>

floor function in C

Example

The following example explains the usage of floor() function

#include <stdio.h>
#include <stdlib.h>
#include <math.h>
int main()
{   //define the variable
    double a=12.1,b=12.9,c=-12.1,d=-12.9;
//calculate and display the floor value
        printf("floor value of a: %f\n",floor(a));
        printf("floor value of b: %f\n",floor(b));
        printf("floor value of c: %f\n",floor(c));
        printf("floor value of d: %f\n",floor(d));
    return 0;
}

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

floor value of a: 12.000000

floor value of a: -13.000000

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

round function in C language