Below is the example of the Math asin( ) Method.
- Example:
<
script
type
=
"text/javascript"
>
document.write("When 1 is passed as a parameter: "
+ Math.asin(1));
</
script
>
chevron_rightfilter_none - Output:
When 1 is passed as a parameter: 1.5707963267948966
The Math.asin( ) method is used to return the arcsine of a number in radians. The Math.asin() method returns a numeric value between -pi/2 and pi/2 radians. The asin() is a static method of Math, therefore, it is always used as Math.asin(), rather than as a method of a Math object created.
Math.asin(x)=arcsin(x)=unique y
where y belongs to [-pi/2;pi/2]
such that sin(y)=x
Syntax:
Math.asin(value)
Parameters: This method accepts a single parameter as mentioned above and described below:
- value: This parameter holds a number in radians who arcsine you want to find.
Returns: The Math.asin() method returns the arcsine of the given number in radians.
Below examples illustrate the Math asin() method in JavaScript:
- Example 1:
Input : Math.asin(1) Output : 1.5707963267948966
- Example 2:
Input : Math.asin(-1) Output : -1.5707963267948966
- Example 3:
Input : Math.asin(2) Output : NaN
- Example 4:
Input : Math.asin(0.5) Output : 0.5235987755982989
More example codes for the above method are as follows:
Program 1:
< script type = "text/javascript" > document.write("When -1 is passed as a parameter: " + Math.asin(-1)); </ script > |
Output:
When -1 is passed as a parameter: -1.5707963267948966
Program 2:
< script type = "text/javascript" > document.write("When 2 is passed as a parameter: " + Math.asin(2)); </ script > |
Output:
When 2 is passed as a parameter: NaN
Program 3:
< script type = "text/javascript" > document.write("When 0.5 is passed as a parameter: " + Math.asin(0.5)); </ script > |
Output:
When 0.5 is passed as a parameter: 0.5235987755982989
Supported Browsers:
- Google Chrome
- Internet Explorer
- Firefox
- Opera
- Safari