asinh

Definition and usage

asinh() function returns an inverse hyperbolic sine of a number.

Example

Returns the inverse hyperbolic sine value of different values:

 <?php
echo ( asinh ( 7 ) ;
echo ( asinh ( 56 ) ;
echo ( asinh ( 2.45 ) ) ;
?>

Try it yourself

grammar

 asinh ( x )

illustrate

Returns the inverse hyperbolic sine value of x , that is, the value whose hyperbolic sine is x .