docs-v2/content/influxdb/cloud/reference/flux/stdlib/math/j1.md

title	description	aliases	menu	weight
math.j1() function	The math.j1() function returns the order-one Bessel function of the first kind.	/influxdb/cloud/reference/flux/functions/math/j1/	influxdb_cloud_ref name parent math.j1 Math	301

The math.j1() function returns the order-one Bessel function of the first kind.

Output data type: Float

import "math"

math.j1(x: 1.23)

// Returns 0.5058005726280961

Parameters

x

The value used in the operation.

Data type: Float

Special cases

math.j1(±Inf) // Returns 0
math.j1(NaN)  // Returns NaN