C Language: asin function(Arc Cosine)(Arc Sine)

C Programming allows us to perform mathematical operations through the functions defined in header file. The header file contains various methods for performing mathematical operations such as sqrt(), pow(), ceil(), floor() etc.

C Math Functions

In the C Programming Language, the asin function returns the arc sine of x.

Syntax

The syntax for the asin function in the C Language is:




double asin(double x);



Parameters or Arguments

A value between -1 and 1. A domain error will occur if x is not between -1 and 1.

Returns

The asin function returns the arc sine of a number represented by x. It will return a value between -π/2 and π/2.

Required Header

In the C Language, the required header for the asin function is:




#include <math.h>



Applies To

In the C Language, the asin function can be used in the following versions:

  • ANSI/ISO 9899-1990

asin Example




/* Example using asin by c programming*/

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

int main(int argc, const char * argv[])
{
    /* Define temporary variables */
    double value;
    double result;

    /* Assign the value we will find the asin of */
    value = 0.5;

    /* Calculate the Arc Sine of value */
    result = asin(value);

    /* Display the result of the calculation */
    printf("The Arc Sine of %f is %f\n", value, result);

    return 0;
}



When compiled and run, this application will output:

The Arc Sine of 0.500000 is 0.523599




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