[/============================================================================
  Boost.Geometry (aka GGL, Generic Geometry Library)

  Copyright (c) 2007-2013 Barend Gehrels, Amsterdam, the Netherlands.
  Copyright (c) 2008-2013 Bruno Lalande, Paris, France.
  Copyright (c) 2009-2013 Mateusz Loskot, London, UK.

  Use, modification and distribution is subject to the Boost Software License,
  Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
  http://www.boost.org/LICENSE_1_0.txt)
=============================================================================/]


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[section:cs_spherical_equatorial cs::spherical_equatorial]

'''<indexterm><primary>cs</primary></indexterm><indexterm><primary>spherical_equatorial</primary></indexterm>'''
Spherical equatorial coordinate system, in degree or in radian. 

[heading Description]
This one resembles the geographic coordinate system, and has latitude up from zero at the equator, to 90 at the pole (opposite to the spherical(polar) coordinate system). Used in astronomy and in GIS (but there is also the geographic)

[heading Synopsis]
``template<typename DegreeOrRadian>
struct cs::spherical_equatorial
      : public core_detail::define_angular_units< DegreeOrRadian >
{
  // ...
};
``

[heading Template parameter(s)]
[table
[[Parameter] [Description]]
[[typename DegreeOrRadian] []]
]

[heading Header]
Either

`#include <boost/geometry.hpp>`


Or

`#include <boost/geometry/core/cs.hpp>`

[endsect]