Кеп:Меттиган карта ХӀиндин Ӏапказ/x

(52.4063)*( cos( {{{2}}}*0.01745329252 )*sin( ({{{1}}}-(90.0))*0.01745329252 ) )*( ((1+sin({{{2}}}*0.01745329252 )*sin(-20.0*0.01745329252 ) + cos({{{2}}}*0.01745329252)*cos(-20.0*0.01745329252 )*cos( ({{{1}}}-(90.0))*0.01745329252))*0.5)^ -0.5)- (-50.0)