docs-v2/content/flux/v0.x/stdlib/math/asinh.md

title	description	menu	weight
math.asinh() function	`math.asinh()` returns the inverse hyperbolic sine of `x`.	flux_0_x_ref name parent identifier math.asinh math math/asinh	101

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

Function type signature

(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
• Use math.asinh in map

Return the inverse hyperbolic sine of a value

import "math"

math.asinh(x: 3.14)// 1.8618125572133835

Use math.asinh in map

import "math"
import "sampledata"

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

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Input data

_time	*tag	_value
2021-01-01T00:00:00Z	t1	-2.18
2021-01-01T00:00:10Z	t1	10.92
2021-01-01T00:00:20Z	t1	7.35
2021-01-01T00:00:30Z	t1	17.53
2021-01-01T00:00:40Z	t1	15.23
2021-01-01T00:00:50Z	t1	4.43

_time	*tag	_value
2021-01-01T00:00:00Z	t2	19.85
2021-01-01T00:00:10Z	t2	4.97
2021-01-01T00:00:20Z	t2	-3.75
2021-01-01T00:00:30Z	t2	19.77
2021-01-01T00:00:40Z	t2	13.86
2021-01-01T00:00:50Z	t2	1.86

Output data

_time	_value	*tag
2021-01-01T00:00:00Z	-1.5213531182383162	t1
2021-01-01T00:00:10Z	3.0858330878095224	t1
2021-01-01T00:00:20Z	2.692443398164797	t1
2021-01-01T00:00:30Z	3.5578734234029126	t1
2021-01-01T00:00:40Z	3.4174904141531415	t1
2021-01-01T00:00:50Z	2.1940489315838474	t1

_time	_value	*tag
2021-01-01T00:00:00Z	3.681985066226324	t2
2021-01-01T00:00:10Z	2.3065378213935075	t2
2021-01-01T00:00:20Z	-2.0322246215338136	t2
2021-01-01T00:00:30Z	3.6779518317559377	t2
2021-01-01T00:00:40Z	3.323453049376607	t2
2021-01-01T00:00:50Z	1.3792134765550192	t2

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