# dm2degrees

Convert degrees-minutes to degrees

## Syntax

``angleInDegrees = dm2degrees(DM)``

## Description

example

````angleInDegrees = dm2degrees(DM)` converts angles from degrees-minutes representation to values in degrees which may include a fractional part (sometimes called “decimal degrees”). ```

## Examples

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```dm = [ ... 30 44.78012; ... -82 39.90825; ... 0 -17.12345; ... 0 14.82000]; format long g angleInDegrees = dm2degrees(dm)```
```angleInDegrees = 4×1 30.7463353333333 -82.6651375 -0.285390833333333 0.247 ```

## Input Arguments

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Angle in degrees-minutes representation, specified as an n-by-2 real-valued matrix. Each row specifies one angle, with the format `[D M]`:

• `D` contains the “degrees” element and must be integer-valued.

• `M` contains the “minutes” element and may have a fractional part. The absolute value of `M` must be less than 60.

For an angle that is positive (north latitude or east longitude) or equal to zero, all elements in the row must be nonnegative. For a negative angle (south latitude or west longitude), the first nonzero element in the row must be negative and the remaining value, if any, is nonnegative.

## Output Arguments

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Angle in degrees, returned as an `n`-element column vector. The kth element corresponds to the kth row of `DM`.

## Algorithms

For an input row with value `[D M]`, with integer-valued `D` and real `M`, the output value will be

`SGN * (abs(D) + abs(M)/60)`
where `SGN` is 1 if `D` and `M` are both nonnegative and -1 if the first nonzero element of `[D M]` is negative. An error results if a nonzero `D` is followed by a negative `M`.

## Version History

Introduced in R2007a