PHP asin() Function – Returns the Arcsine of a Value
The PHP asin() function returns the arcsine of a given float argument in radians, with detailed parameter description, return value explanation, and example code demonstrating usage with various inputs and their corresponding outputs.
The asin() function in PHP returns the arcsine of a given float argument, expressed in radians.
It is the inverse of sin() , meaning that for any value a within the function’s domain, a == sin(asin(a)) .
Parameter: float $arg – the value to be processed.
Return value: The arcsine of $arg in radians.
Example usage:
Output:
0.694498265627
0
-1.57079632679
1.57079632679
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