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

title	description	menu	weight
math.remainder() function	`math.remainder()` returns the IEEE 754 floating-point remainder of `x/y`.	flux_v0_ref name parent identifier math.remainder math math/remainder	101

math.remainder() returns the IEEE 754 floating-point remainder of x/y.

Function type signature

(x: float, y: float) => float

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

Parameters

x

({{< req >}}) Numerator to use in the operation.

y

({{< req >}}) Denominator to use in the operation.

Examples

• Return the remainder of division between two values
• Use math.remainder in map

Return the remainder of division between two values

import "math"

math.remainder(x: 21.0, y: 4.0)// 1.0

Use math.remainder in map

import "math"

data
    |> map(fn: (r) => ({_time: r._time, _value: math.remainder(x: r.t1, y: r.t2)}))

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

Input data

_time	t1	t2
2021-01-01T00:00:00Z	-2.18	19.85
2021-01-01T00:00:10Z	10.92	4.97
2021-01-01T00:00:20Z	7.35	-3.75
2021-01-01T00:00:30Z	17.53	19.77
2021-01-01T00:00:40Z	15.23	13.86
2021-01-01T00:00:50Z	4.43	1.86

Output data

_time	_value
2021-01-01T00:00:00Z	-2.18
2021-01-01T00:00:10Z	0.9800000000000004
2021-01-01T00:00:20Z	-0.15000000000000036
2021-01-01T00:00:30Z	-2.2399999999999984
2021-01-01T00:00:40Z	1.370000000000001
2021-01-01T00:00:50Z	0.7099999999999995

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