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SpreadJS Overview
Getting Started
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SpreadJS Designer Component
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Formula Reference
- Formula Overview
- Formula Functions
  - Barcode Functions
  - Compatibility Functions
  - Database Functions
  - Date and Time Functions
  - Engineering Functions
    - BESSELI
    - BESSELJ
    - BESSELK
    - BESSELY
    - BIN2DEC
    - BIN2HEX
    - BIN2OCT
    - BITAND
    - BITLSHIFT
    - BITOR
    - BITRSHIFT
    - BITXOR
    - COMPLEX
    - CONVERT
    - DEC2BIN
    - DEC2HEX
    - DEC2OCT
    - DELTA
    - ERF
    - ERF.PRECISE
    - ERFC
    - ERFC.PRECISE
    - GESTEP
    - HEX2BIN
    - HEX2DEC
    - HEX2OCT
    - IMABS
    - IMAGINARY
    - IMARGUMENT
    - IMCONJUGATE
    - IMCOS
    - IMCOSH
    - IMCOT
    - IMCSC
    - IMCSCH
    - IMDIV
    - IMEXP
    - IMLN
    - IMLOG10
    - IMLOG2
    - IMPOWER
    - IMPRODUCT
    - IMREAL
    - IMSEC
    - IMSECH
    - IMSIN
    - IMSINH
    - IMSQRT
    - IMSUB
    - IMSUM
    - IMTAN
    - OCT2BIN
    - OCT2DEC
    - OCT2HEX
  - Financial Functions
  - Information Functions
  - Logical Functions
  - Lookup and Reference Functions
  - Math and Trigonometric Functions
  - Statistical Functions
  - Sparkline Functions
  - Text Functions
  - Web Functions
  - Other Functions
  - RegEx Functions
Import and Export Reference
Frequently Used Events
API Documentation
Release Notes

BESSELJ

This function calculates the Bessel function of the first kind.

Syntax

BESSELJ(value, order)

Arguments

This function has these arguments:

Argument	Description
value	Value at which to evaluate the function
order	Number representing the order of the function; if it is not an integer, it is truncated

Remarks

If the value or order is non-numeric then a #Value! error is returned. If the order is less than 0 then the #NUM! error is returned.

Data Types

Accepts numeric data for both arguments. Returns numeric data.

Examples

BESSELJ(A4,D5)

BESSELJ(R4C1,R5C4)

BESSELJ(1.85,2) gives the result 0.31812827879