---
title: math.pow() function
description: >
  `math.pow()` returns `x**y`, the base-x exponential of `y`.
menu:
  flux_v0_ref:
    name: math.pow
    parent: math
    identifier: math/pow
weight: 101
---

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`math.pow()` returns `x**y`, the base-x exponential of `y`.



##### Function type signature

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

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For more information, see [Function type signatures](/flux/v0/function-type-signatures/).
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## Parameters

### x
({{< req >}})
Base value to operate on.



### y
({{< req >}})
Exponent value.




## Examples

- [Return the base-x exponential of a value](#return-the-base-x-exponential-of-a-value)
- [Use math.pow in map](#use-mathpow-in-map)

### Return the base-x exponential of a value

```js
import "math"

math.pow(x: 2.0, y: 3.0)// 8.0


```


### Use math.pow in map

```js
import "math"

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

```

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#### 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 | NaN                       |
| 2021-01-01T00:00:10Z | 144532.83209763622        |
| 2021-01-01T00:00:20Z | 0.0005641862251143407     |
| 2021-01-01T00:00:30Z | 3886587782891166000000000 |
| 2021-01-01T00:00:40Z | 24672926229934220         |
| 2021-01-01T00:00:50Z | 15.933490684011332        |

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