# Documentation

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Convert angle from degrees to radians

## Syntax

``R = deg2rad(D)``

## Description

example

````R = deg2rad(D)` converts angle units from degrees to radians for each element of `D`.```

## Examples

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Convert a 90 degree angle into radians.

`R = deg2rad(90)`
```R = 1.5708 ```

Specify the spherical distance between Munich and Bangalore in degrees and the mean radius of Earth in kilometers. Compute the distance (measured along the Earth's surface) between Munich and Bangalore, in kilometers.

```D = 64.7; radEarth = 6371; R = deg2rad(D); dist = radEarth*R```
```dist = 7.1943e+03 ```

## Input Arguments

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Angle in degrees, specified as a scalar, vector, matrix, or multidimensional array. If `D` contains complex elements, `deg2rad` converts the real and imaginary parts separately.

Data Types: `single` | `double`
Complex Number Support: Yes

## Output Arguments

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Angle in radians, returned as a scalar, vector, matrix, or multidimensional array. `R` is the same size as `D`.