C Tutorial

C Tutorial C Language Environment Setup Execution flow of C program C printf and Scanf C Data type C Token Variable in C Operators in C Comments in C Escape Sequence in C C – Storage Classes C Decision control statement Loop Statement in C Break, continue and goto statement in C Type Casting in C Function in C Recursion in C String in C C Array Pointer in C Dynamic memory allocation C –Structure Nested Structure in C Union in C File Handling in C C pre-processor Static Function In C Sizeof In C Selection Sort In C Scope Of Variables In C Runtime Vs Compile Time In C Random Access Lseek In C Queue Implementation In C Pseudo Code In C Prototype In C Pointer To Pointer In C Pointer Arithmetic In C Passing Array To Function In C Null Character In C Merge Sort In C Macros In C Library Functions In C Memory Leak In C Int In C Goto And Labels In C Fibonacci Series In C Fflush In C Derived Data Types In C Data Types In C Const Vs Volatile In C Character Set In C Character Class Tests In C Calloc In C C Pointers Arrays In C Include In C Clrscr In C C Vs Java String Literals In C Types Of Pointers In C Variables In C Volatile In C Why C Is A Middle Level Language Infix To Postfix Program In C Ceil function in C LCM of two numbers in C Quick sort in C Static in C function pointer as argument in C Top Array Keywords in C Add two numbers using the function in C Armstrong program in C using function Array, Declaring Arrays and Array Initialization Limitations of Inline Function in C Merge and Merge sort with example in C Do-While Loop in C For Loop in C While-Loop in C Difference between while and do-while loop in C Array Of Structures in C Data Structures And Algorithms in C Types Of Structures In C How to Avoid Structure Padding in C Use of Structure in C Do WHILE LOOP in C Programming Examples For Loop in C Programming Examples Entry Control Loop in C Exit control loop in C Infinite loop in C Nested loop in C pow() function in C String Handling functions in C Prime Number code in C Factorial Program in C using For Loop Factorial Program in C Using While Loop Fibonacci Series in C Using For Loop Fibonacci series in C using while loop Prime Number Program in C using for Loop While Loop in C programming examples Built-in functions in C Assert() Function C vs Java Strings Call Back Function in Embedded C Else If Ladder fgets() function Ftell() Function getc() function getch() function gets() function Heap Sort Nested if-else statement Pi() Function Positioning of file Write() function abs() function in C Attributes in C C program to find factorial of a number using Recursion Ferror() in c fopen() function in C Fibonacci series program in C using Recursion Formatted Input and output function in C Snake Game in C User Defined Functions in C Beep() function in C Cbrt() function in C Hook() function in C Isalnum() function in C C Program to find the Roots of a Quadratic Equation C Switch Statements Difference between rand() and srand() function in C Difference between while and for loop in C Doubly Linked list in C Example of Iteration in C How to use atoi() function in C How to use floor() function in C How to use sine() function in C How to use Typedef Struct in C Integer Promotions in C C Program to Find Largest Number Using Dynamic Memory Allocation C Program to Find the Largest Number using Ternary Operator C/C++ Program to Find the Size of int, float, double and char Find the Largest Three Distinct Elements in an Array using C/C++ Loop Questions in C Modulus on Negative Numbers in C Multiplication table program in C using For loop Nested Loops in C Programming Examples C Program for Mean and Median of an Unsorted Array Results of Comparison Operations in C and C++ Reverse a Stack using Recursion in C Simple hash() function in C strcat() Function in C Sum of N numbers in C using For loop Use of free() function in C Write a program that produces different results in C and C++

How to use floor() function in C

Introduction: The floor() used as a function in the C programming language. This function uses to return the largest or most significant integer value. The integer value is smaller than the x or equal to the x.

The floor() function calculates some value, which is known as the nearest integer value. The floor function used the float variable as an argument. This function also computes floor value.

Floor() is a library function in C language.

Syntax of the floor() function in C language:

Syntax means the order or arrangement. The syntax is also known as the function prototype. Every function has a syntax value. The syntax of the floor() function is:

double floor (double x);

In the floor() function, the parameter type is double, and the return type is double. In the C language, the floor() function [double floor (double x)] returns the most significant integer value, which is less than or equal to the x.

Parameters of the floor() function in C language :

In the C language, x uses as a parameter. X is also known as the floating-point value. It is the value which is round down to the nearest integer.

Returns Value of the floor() function in C language:

The floor() function returns the largest or more significant integer value, which is less than x or equal to the x. That means the integer value is not greater than x.

Header file of the floor() function in C language :

Every program contains some header files. For run of the any program, a header file must be needed. Without a header file, you can't run any programs. So, we must produce the header file in every program. It is a file with an extension. The floor() function does not takes a double argument.

The primary use of the header file is to propagate the declaration of code files. The floor() function is one of the most used mathematical functions. The header file of the floor function in C language is <math.h>. This function takes a double value as an argument and returns the value.

It is written in the program as #include <math.h>.

In the C programming language, the floor() function is used in the following version, that is: ANSI/ISO 9899-1990

Example 1

Here we given a example of the floor() function using C language:

#include <stdio.h>
#include <math.h>
int main ()
{
//define temporary variable
double number = 5.55
int result;
result = floor (number)
//display the result
printf (“The floor integer value of %.2f = %d ”, number, result);
return 0;
}

Output: We are compiling and run the above program.The result of this above program is:

The floor integer value of 5.55 = 6

To better understand, we give another two examples of flood() functions.

Example 2

Here we given a example of the floor() function using C language:

#include <stdio.h>
#include <math.h>
int main ()
{
Float val1, val2, val3, val4, val5, val6;
//initialize the values
 val1 = 1.5;
val2 = 2.5;
val3 = 3.5;
val4 = 4.5;
val5 = 5.5;
val6 = 6.6;
//display the results
printf (“Value1 = 1Lf\n”, floor (val1));
printf (“Value2 = 1Lf\n”, floor (val2));
printf (“Value3 = 1Lf\n”, floor (val3));
printf (“Value4 = 1Lf\n”, floor (val4));
printf (“Value5 = 1Lf\n”, floor (val5));
printf (“Value6 = 1Lf\n”, floor (val6));
return 0;
}

Output: We are compiling and running the above program. The result of this above program is:

Value1 = 1.0
Value2 = 2.0
Value3 = 3.0
Value4 = 4.0
Value5 = 5.0
Value6 = 6.0

Example 2

Here we given a example of the floor() function using C language:

#include <stdio.h>
#include <math.h>
int main ()
int (const char * argv[]);
int  argc;
{
// define variables which is temporary
double value;
double result;
Value = 5.5;
//calculate the value of floor
Result = floor (value);
//Display the result
printf (“The floor integer value of %.2f = %d ”, value, result);
return 0;
}

Output: We are compiling and running the above program. The result of this above program is:

The floor integer value of 5.5 = 5.00

In the above three programs, we have used the floor function; through the programs, we briefly discussed how to write any C language program using floor() function.

The floor() function is a mathematical function. That’s why we use the header file <math.h>. We are also share the output of the above three programs.



ADVERTISEMENT
ADVERTISEMENT