Lines Matching refs:tan
473 double tanB = tan(eclipLat);
606 return 2.0 * ::atan( ::tan(E/2) * ::sqrt( (1+eccentricity)
792 // double tanL = ::tan(fLatitude);
793 // double H = ::acos(-tanL * ::tan(pos1.declination));
796 // H = ::acos(-tanL * ::tan(pos2.declination));
969 // // tan(sRA) = -------------------------
1010 // // cos(HA0) = - tan(lat) * tan(Dec)
1370 double tanL = ::tan(fLatitude);
1384 double angle = ::acos(-tanL * ::tan(pos.declination));
