ACOSH(3) 1 ACOSH(3)
acosh - Inverse hyperbolic cosine
SYNOPSIS
float acosh (float $arg)
DESCRIPTION
Returns the inverse hyperbolic cosine of $arg, i.e. the value whose hyperbolic cosine is $arg.
PARAMETERS
o $arg
- The value to process
RETURN VALUES
The inverse hyperbolic cosine of $arg
CHANGELOG
+--------+--------------------------------------------------+
|Version | |
| | |
| | Description |
| | |
+--------+--------------------------------------------------+
| 5.3.0 | |
| | |
| | This function is now available on all platforms |
| | |
+--------+--------------------------------------------------+
SEE ALSO
cosh(3), acos(3), asinh(3), atanh(3).
PHP Documentation Group ACOSH(3)
