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Spherical trigonometry for geographic applications. That is, compute distances and related measures for angular (longitude/latitude) locations.
Package details 


Author  Robert J. Hijmans [cre, aut], Ed Williams [ctb], Chris Vennes [ctb] 
Maintainer  Robert J. Hijmans <r.hijmans@gmail.com> 
License  GPL (>= 3) 
Version  1.510 
Package repository  View on CRAN 
Installation 
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