Documentation

Default coordinates with all zeros -- when you don't care about/know the velocities, which would be the case for most inputs (though most outputs _will_ include them.) Usually you'll set only lat and lng (e.g. `defaultCoordinates{lat = 1.4, lng = 4.1}`) when using it as an input for another function.

Given an *absolute* path, point the underlying ephemerides library to it. Takes a String for easy use with the directory package. You only need to call this function to provide an explicit ephemerides path, if the environment variable SE_EPHE_PATH is set, it overrides this function.

Explicitly release all "cache" pointers and open files obtained by the C library.

Given year, month and day as Int and a time as Double, return a single floating point number representing absolute Julian Time. The input date is assumed to be in Gregorian time. More info on this: https://www.astro.com/swisseph/swephprg.htm#_Toc46406824

Given a decimal representation of Julian Time (see julianDay), and a Planet, returns either the position of that planet at the given time, if available in the ephemeris, or an error.

Given a decimal representation of Julian Time (see julianDay), and a set of Coordinates (see calculateCoordinates,) and a HouseSystem (most applications use Placidus,) return a CuspsCalculation with all 12 house cusps in that system, and other relevant Angles.