# The Excel ASINH Function

Inverse Hyperbolic Sine

The asinh function returns the inverse hyperbolic sine. Therefore:

ASINH( SINH( z ) ) = z

The equation used to calculate the inverse hyperbolic sine is: Further information on the inverse hyperbolic functions can be found on Wikipedia

## Function Description

The Excel Asinh function calculates the inverse hyperbolic sine of a supplied number.

The syntax of the function is:

ASINH( number )

Where the number argument is the real number that you want to calculate the inverse hyperbolic sine of.

## Excel Asinh Function Examples

The following spreadsheet shows the Excel Asinh Function, used to calculate the inverse hyperbolic sine of three different values:

Formulas:
AB
1numberASINH
20=ASINH( A2 )
3-0.5=ASINH( A3 )
42=ASINH( A4 )
Results:
AB
1numberASINH
210
3-0.5-0.481211825
421.443635475

For further details and examples of the Excel Asinh function, see the Microsoft Office website.

## Asinh Function Error

If you get an error from the Excel Asinh Function, this is likely to be the #VALUE! error:

Common Error
 #VALUE! - Occurs if the supplied number argument is not recognized as a numeric value.