# gcMaxLat

From geosphere v1.5-1
by Robert Hijmans

##### Highest latitude on a great circle

What is northern most point that will be reached when following a great circle? Computed with Clairaut's formula. The southern most point is the `antipode`

of the northern-most point. This does not seem to be very precise; and you could use optimization instead to find this point (see examples)

- Keywords
- spatial

##### Usage

`gcMaxLat(p1, p2)`

##### Arguments

- p1
- longitude/latitude of point(s). Can be a vector of two numbers, a matrix of 2 columns (first one is longitude, second is latitude) or a SpatialPoints* object
- p2
- as above

##### Value

- A matrix with coordinates (longitude/latitude)

##### References

##### See Also

##### Examples

```
gcMaxLat(c(5,52), c(-120,37))
# Another way to get there:
f <- function(lon){gcLat(c(5,52), c(-120,37), lon)}
optimize(f, interval=c(-180, 180), maximum=TRUE)
```

*Documentation reproduced from package geosphere, version 1.5-1, License: GPL (>= 3)*

### Community examples

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