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BESSELI

BESSELI function in Excel: Modified Bessel function In(x).

November 5, 2026
Excel functions / Engineering
Engineering function · Excel

BESSELI function

Modified Bessel function In(x).

Availability

PlatformStatus
ExcelListed
Google SheetsNot listed
This function has no same-named match in Google Sheets.
Reference entry. Syntax, tested examples and a practice file arrive with the full guide. Open the official function list.