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