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 sine() function in C

What is Function?

The function is a set of statements. It takes input and performs some computation to produce output.

The process is a set of codes only achieved when it is called. You can also pass data by using the function.

The C program produces some parts that are used to remove the program's complexity.

Many functions are used in the C language, but here we discuss the sine function in C.

Types of function –

There are mainly two types of function in C language, these are:

  1. Library function
  2. User definable function

Advantage of function –

  1. The function reduces the complexity of a program.
  2. The function gives a modular structure.
  3. This function can make its header file.
  4. It increases the readability of a program.

Sine function in C –

In the C programming language, the sine() function is a mathematical function. This returns the sine of a number.

The sin() function is a library function. It has another definition in trigonometry. This function is used to measure the unknown sides of a right triangle.

In which library is sine in C language?

The C library function, i.e. sin()

Syntax of sine function

Double sin (double X);

The sin() function is returns some value. The is sine of the number.

Applies to –

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

Parameter or argument of the Sine function –

The parameter of the sine function is x. x is a value that is expressed in radian. It is not used for defined the degree.

Returns value of the sine function –

Here we discuss the returns value. The sine() function is return a value. The value is a sine of x, measured by the radian, not by the degree. In the C programming language, we can write the sin function given below:

[Math] sin x = sin (x)

Header file of the sine function in C language

Every program contains some header file, Which is necessary to run any program. Without using a header file, you can't run any program. So, we must produce a header file in every program. It is a file with an extension. The main use of the header file is to propagate the declaration of code files. Without header file we can not run any program.

The sine() function also known as the mathematical function.The header file of the sine function in C language is <math.h>.

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

The value of the sin() function must be lies between 0 and 1.

Example 1

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

#include <stdio.h>
#include <math.h>
int main ()
//define temporary variable
double x ;
double result;
x = 2;
//calculate the sin value
result = sin (x)
printf (“sin(%.22f) = %.22f\n” ,x, result);
//assign the value
x = -2;
result = sin (x)
printf (“sin(%.22f) = %.22f\n” ,x, result);
x = 0;
result = sin (x)
printf (“sin(%.22f) = %.22f\n” ,x, result);
return 0;


We compile and run the above program.The result of this above program is:

Sin (2) = 0.034
Sin (-2) = -0.034
Sin (0) = 0

For better understand, we are given another example of sin() function .

Example  : Here we given the next example of the sin() function using C language:

#include <stdio.h>
#include <math.h>
 #define PI 3.14
int main () 
//define temporary variable
Double x;
Double ret;
Double result;
//assign the value
x = 20.0;
//calculate the sine value
result = PI / 120;
ret = sin(x*result);
//print the result
printf (“Sine of the %1f is %1f degrees”, x, ret);
return (0);

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

Sine of the 20.0000 degrees is 0.02616666

In the above two programs, we have used the sine function; by the programs, we briefly discussed how to write any C language program using the sine() function.

The sine() function is a mathematical function.

So we <math.h> header file in this program. We also share the output of the above two programs.