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math.asinh() function

content/flux/v0/stdlib/math/asinh.md

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<!------------------------------------------------------------------------------ IMPORTANT: This page was generated from comments in the Flux source code. Any edits made directly to this page will be overwritten the next time the documentation is generated. To make updates to this documentation, update the function comments above the function definition in the Flux source code: https://github.com/influxdata/flux/blob/master/stdlib/math/math.flux#L231-L231 Contributing to Flux: https://github.com/influxdata/flux#contributing Fluxdoc syntax: https://github.com/influxdata/flux/blob/master/docs/fluxdoc.md ------------------------------------------------------------------------------->

math.asinh() returns the inverse hyperbolic sine of x.

Function type signature
js
(x: float) => float

{{% caption %}} For more information, see Function type signatures. {{% /caption %}}

Parameters

x

({{< req >}}) Value to operate on.

Examples

Return the inverse hyperbolic sine of a value

js
import "math"

math.asinh(x: 3.14)// 1.8618125572133835

Use math.asinh in map

js
import "math"
import "sampledata"

sampledata.float()
    |> map(fn: (r) => ({r with _value: math.asinh(x: r._value)}))

{{< expand-wrapper >}} {{% expand "View example input and output" %}}

Input data

_time*tag_value
2021-01-01T00:00:00Zt1-2.18
2021-01-01T00:00:10Zt110.92
2021-01-01T00:00:20Zt17.35
2021-01-01T00:00:30Zt117.53
2021-01-01T00:00:40Zt115.23
2021-01-01T00:00:50Zt14.43
_time*tag_value
2021-01-01T00:00:00Zt219.85
2021-01-01T00:00:10Zt24.97
2021-01-01T00:00:20Zt2-3.75
2021-01-01T00:00:30Zt219.77
2021-01-01T00:00:40Zt213.86
2021-01-01T00:00:50Zt21.86

Output data

_time_value*tag
2021-01-01T00:00:00Z-1.5213531182383162t1
2021-01-01T00:00:10Z3.0858330878095224t1
2021-01-01T00:00:20Z2.692443398164797t1
2021-01-01T00:00:30Z3.5578734234029126t1
2021-01-01T00:00:40Z3.4174904141531415t1
2021-01-01T00:00:50Z2.1940489315838474t1
_time_value*tag
2021-01-01T00:00:00Z3.681985066226324t2
2021-01-01T00:00:10Z2.3065378213935075t2
2021-01-01T00:00:20Z-2.0322246215338136t2
2021-01-01T00:00:30Z3.6779518317559377t2
2021-01-01T00:00:40Z3.323453049376607t2
2021-01-01T00:00:50Z1.3792134765550192t2

{{% /expand %}} {{< /expand-wrapper >}}