# Documentation

### This is machine translation

Translated by
Mouse over text to see original. Click the button below to return to the English verison of the page.

# realpow

Array power for real-only output

## Syntax

`Z = realpow(X,Y)`

## Description

`Z = realpow(X,Y)` raises each element of array `X` to the power of its corresponding element in array `Y`. Arrays `X` and `Y` must be the same size. The range of `realpow` is the set of all real numbers, i.e., all elements of the output array `Z` must be real.

## Examples

collapse all

Create a 3-by-3 matrix with the same value in each element.

```X = -2*ones(3,3) ```
```X = -2 -2 -2 -2 -2 -2 -2 -2 -2 ```

Compute a 3-by-3 matrix of integer values.

```Y = pascal(3) ```
```Y = 1 1 1 1 2 3 1 3 6 ```

Compute the element-wise powers of the elements in `X` corresponding to the exponents defined in `Y`.

```Z = realpow(X,Y) ```
```Z = -2 -2 -2 -2 4 -8 -2 -8 64 ```

collapse all

### Tall Array Support

This function fully supports tall arrays. For more information, see Tall Arrays.