JavaScript Editor Javascript debugger      Website design 

↑

acosh

Inverse hyperbolic cosine (PHP 4 >= 4.0.7, PHP 5)
float acosh ( float arg )

Returns the inverse hyperbolic cosine of arg, i.e. the value whose hyperbolic cosine is arg.

Note:

This function is not implemented on Windows platforms.

Parameters

arg

The value to process

Return Values

The inverse hyperbolic cosine of arg

See Also
cosh()
acos()
asinh ()
atanh()


→