Convert spherical distance from radians to nautical miles

Syntax

``nm = rad2nm(rad)``
``nm = rad2nm(rad,radius)``
``nm = rad2nm(rad,sphere)``

Description

example

````nm = rad2nm(rad)` converts distances from radians to nautical miles, as measured along a great circle on a sphere with a radius of 3440.065 nm, the mean radius of the Earth.```

example

````nm = rad2nm(rad,radius)` converts distances from radians to nautical miles, as measured along a great circle on a sphere having the specified radius.```
````nm = rad2nm(rad,sphere)` converts distances from radians to nautical miles, as measured along a great circle on a sphere approximating an object in the Solar System.```

Examples

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Find the circumference of the Earth in nautical miles. By default, the `rad2nm` function assumes your input is a measurement of the Earth, which is represented as a sphere with a radius of 3440.065 nautical miles.

`nm = rad2nm(2*pi)`
```nm = 2.1615e+04 ```

Find the circumference of a sphere with a radius of 3432 nautical miles.

`nm = rad2nm(2*pi,3432)`
```nm = 2.1564e+04 ```

Input Arguments

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Distance in radians, specified as a numeric array.

Data Types: `single` | `double`

Radius of sphere in units of nautical miles, specified as a numeric scalar.

Sphere approximating an object in the Solar System, specified as one of the following values: `'sun'`, `'moon'`, `'mercury'`, `'venus'`, `'earth'`, `'mars'`, `'jupiter'`, `'saturn'`, `'uranus'`, `'neptune'`, or `'pluto'`. The value of `sphere` is case-insensitive.

Output Arguments

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Distance in nautical miles, returned as a numeric array.

Data Types: `single` | `double`

Version History

Introduced in R2007a