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BESSELI Function in Excel: Syntax, Examples and Free Practice

By Rinkesh Shah, founder of Cellgrids.

BESSELI is an Excel Engineering function. Returns the modified Bessel function In(x).

BESSELI syntax

=BESSELI(x, n)

Arguments

When to use BESSELI

A specialized function used in scientific and engineering calculations rather than typical day-to-day business reporting.

Practice BESSELI online, free

Open the live Excel-style spreadsheet and try BESSELI yourself. No Excel install or sign-up needed to start.

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Frequently asked questions

What does the BESSELI function do in Excel?

Returns the modified Bessel function In(x).

What is the syntax of BESSELI in Excel?

The syntax is =BESSELI(x, n). x: The value to evaluate; n: The order or index to use.

Where can I practice BESSELI online for free?

Open the free live spreadsheet on Cellgrids and try BESSELI yourself. No Excel install is needed and you can start without signing up.

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