Formualizer Docs
ReferenceFunctionsEngineering Functions

BESSELJ

BESSELJ: Returns the Bessel function Jn(x).

Summary

Computes the Bessel function of the first kind for a real value x and a non-negative integer order n. The order is truncated toward zero.

Remarks

  • Arguments are supplied as BESSELJ(x, n).
  • Negative orders return #NUM! in the public spreadsheet function.
  • Results are approximate floating-point values.

Examples

Third-order Bessel J
Grid
CellValue
No inputs on Sheet1.
Formula
=
Result
Not evaluated yet.
Expected
0.002563729994587244
Zero input for positive order
Grid
CellValue
No inputs on Sheet1.
Formula
=
Result
Not evaluated yet.
Expected
0

FAQ

Are negative public orders supported?

No. Negative order arguments return #NUM! for Excel compatibility.

Runtime metadata

Category

Engineering

Signature

BESSELJ(arg1: Any, arg2: Any)

Arity

min 2, max 2

Arguments

arg1

Any · Scalar

arg2

Any · Scalar

Caps

PURE

Source

crates/formualizer-eval/src/builtins/engineering.rs

BESSELI

BESSELI: Returns the modified Bessel function In(x).

BESSELK

BESSELK: Returns the modified Bessel function Kn(x).

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SummaryRemarksExamplesRelated functionsFAQAre negative public orders supported?Runtime metadata