cosd              144 ext/date/lib/astro.c 	E = M + e * RADEG * sind(M) * (1.0 + e * cosd(M));
cosd              145 ext/date/lib/astro.c 	x = cosd(E) - e;
cosd              163 ext/date/lib/astro.c 	x = *r * cosd(lon);
cosd              171 ext/date/lib/astro.c 	y = y * cosd(obl_ecl);
cosd              261 ext/date/lib/astro.c 		cost = (sind(altit) - sind(lat) * sind(sdec)) / (cosd(lat) * cosd(sdec));