php man page for asinh

ASINH(3)								 1								  ASINH(3)

asinh - Inverse hyperbolic sine

SYNOPSIS
       float asinh (float  $arg)

DESCRIPTION
	Returns the inverse hyperbolic sine of $arg, i.e. the value whose hyperbolic sine is $arg.

PARAMETERS
	      o $arg
		- The argument to process

RETURN VALUES
	The inverse hyperbolic sine of $arg

CHANGELOG
       +--------+--------------------------------------------------+
       |Version |						   |
       |	|						   |
       |	|		    Description 		   |
       |	|						   |
       +--------+--------------------------------------------------+
       | 5.3.0	|						   |
       |	|						   |
       |	|  This function is now available on all platforms |
       |	|						   |
       +--------+--------------------------------------------------+
SEE ALSO
       sinh(3), asin(3), acosh(3), atanh(3).

PHP Documentation Group 														  ASINH(3)