Engineering - BESSELI Function

Description

The BESSELI function returns the modified Bessel function In (x), which is equivalent to the Bessel function evaluated for purely imaginary arguments.

Syntax

BESSELI(X, N)

Arguments

Argument	Description	Required/ Optional
X	The value at which to evaluate the function.	Required
N	The order of the Bessel function. If n is not an integer, it is truncated.	Required

Notes

If x is nonnumeric, BESSELI returns the #VALUE! Error value.
If n is nonnumeric, BESSELI returns the #VALUE! Error value.
If n < 0, BESSELI returns the #NUM! Error value.
The n-th order modified Bessel function of the variable x is −

$$I_n(x) = (i)^{-n}J_n(ix)$$

Applicability

Excel 2007, Excel 2010, Excel 2013, Excel 2016

Example

advanced_excel_engineering_functions.htm