Wonani kulemba kwambula kuona kwa Template:Great circle distance/er/doc

{{Documentation subpage}}
<!-- Please place categories where indicated at the bottom of this page and interwikis at Wikidata (see [[Wikipedia:Wikidata]]) -->
== Usage ==
{{tlx|Great circle distance/er|''latitude''}}

Calculates the '''E'''arth's '''r'''adius, in kilometers, at a given latitude. Uses the following formula:

<math>R=\sqrt{[(r_1^2*\cos{B})^2+(r_2^2*\sin{B})^2]/[(r_1*\cos{B})^2+(r_2*sin{B})^2]}</math>

with latitude <math>B</math>, radius <math>R</math>, radius at equator <math>r_1=6378.137</math>, and radius at pole <math>r_2=6356.752</math>

With no latitude input, it defaults to the mean Earth radius.

<includeonly>{{sandbox other||
<!-- Categories below this line, please; interwikis at Wikidata -->

}}</includeonly>