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Excel BESSELI Function

Author: Sun Last Modified: 2022-04-18

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If you want to follow along with this tutorial, please download the example spreadsheet.

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Description

The Excel BESSELI function calculates the modified Bessel function, which is equivalent to the Bessel function evaluated for purely imaginary arguments.

Syntax and arguments

Formula syntax

BESSELI(x, n)

Arguments

  • X: Required, the value at which the function is to be evaluated.
  • N: Required, the order of the Bessel function. Normally, it is an integer, if it is a decimal, it will be truncated.

Return Value

The BESSELI function returns a numeric value.

Remark

The n-th order modified Bessel function of the variable x is:

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Error

1. When any arguments of BESSELI function are nonnumeric values, #VALUE! value will be returned. 

2. When argument n is less than zero, #NUM! value will be returned.

Version

Excel 2003 and later

Usage and Examples

Example

To calculate the modified Bessel function at 5 with an order of 2, please use the formula:

=BESSELI(B4,C4)

Or directly type the values in the function

=BESSELI(5,2)

Press Enter key to get the result.

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Relative Functions:


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