# Extent math

From raster v2.9-5
by Robert Hijmans

##### round Extent coordinates

use `round(x, digits=0)`

to round the coordinates of an Extent object to the number of digits specified. This can be useful when dealing with a small imprecision in the data (e.g. 179.9999 instead of 180). `floor`

and `ceiling`

move the coordiantes to the outer or inner whole integer numbers.

It is also possible to use Arithmetic functions with Extent objects (but these work perhaps unexpectedly!)

See `Math-methods`

for these (and many more) methods with Raster* objects.

- Keywords
- spatial

##### Usage

```
# S4 method for Extent
floor(x)
# S4 method for Extent
ceiling(x)
```

##### Arguments

- x
Extent object

##### See Also

##### Examples

```
# NOT RUN {
e <- extent(c(0.999999, 10.000011, -60.4, 60))
round(e)
ceiling(e)
floor(e)
# }
```

*Documentation reproduced from package raster, version 2.9-5, License: GPL (>= 3)*

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