docs-v2/content/flux/v0/stdlib/math/minf.md

title	description	menu	weight
math.mInf() function	`math.mInf()` returns positive infinity if `sign >= 0`, negative infinity if `sign < 0`.	flux_v0_ref name parent identifier math.mInf math math/mInf	101

math.mInf() returns positive infinity if sign >= 0, negative infinity if sign < 0.

Function type signature

(sign: int) => float

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

Parameters

sign

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

Examples

• Return an infinity float value from a positive or negative sign value
• Use math.mInf in map

Return an infinity float value from a positive or negative sign value

import "math"

math.mInf(sign: 1)// +Inf

Use math.mInf in map

import "sampledata"
import "math"

sampledata.int()
    |> map(fn: (r) => ({r with _value: math.mInf(sign: r._value)}))

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

Input data

_time	_value	*tag
2021-01-01T00:00:00Z	-2	t1
2021-01-01T00:00:10Z	10	t1
2021-01-01T00:00:20Z	7	t1
2021-01-01T00:00:30Z	17	t1
2021-01-01T00:00:40Z	15	t1
2021-01-01T00:00:50Z	4	t1

_time	_value	*tag
2021-01-01T00:00:00Z	19	t2
2021-01-01T00:00:10Z	4	t2
2021-01-01T00:00:20Z	-3	t2
2021-01-01T00:00:30Z	19	t2
2021-01-01T00:00:40Z	13	t2
2021-01-01T00:00:50Z	1	t2

Output data

_time	_value	*tag
2021-01-01T00:00:00Z	-Inf	t1
2021-01-01T00:00:10Z	+Inf	t1
2021-01-01T00:00:20Z	+Inf	t1
2021-01-01T00:00:30Z	+Inf	t1
2021-01-01T00:00:40Z	+Inf	t1
2021-01-01T00:00:50Z	+Inf	t1

_time	_value	*tag
2021-01-01T00:00:00Z	+Inf	t2
2021-01-01T00:00:10Z	+Inf	t2
2021-01-01T00:00:20Z	-Inf	t2
2021-01-01T00:00:30Z	+Inf	t2
2021-01-01T00:00:40Z	+Inf	t2
2021-01-01T00:00:50Z	+Inf	t2

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