__ /\ \__/\ \ # __ ____ /\_\ ___ ___ __ __\ \ ,_\ \ \___ # /'__`\ /\_ ,`\\/\ \ /' __` __`\/\ \/\ \\ \ \/\ \ _ `\ # /\ \L\.\_\/_/ /_\ \ \/\ \/\ \/\ \ \ \_\ \\ \ \_\ \ \ \ \ # \ \__/.\_\ /\____\\ \_\ \_\ \_\ \_\ \____/ \ \__\\ \_\ \_\ # \/__/\/_/ \/____/ \/_/\/_/\/_/\/_/\/___/ \/__/ \/_/\/_/ #
Azimuth : Simple PHP library to compute azimuth (°), distance (km) & sight altitude (°)
GNU GPL v3
Gautier Michelin, 2015
based on Don Cross work, http://cosinekitty.com/compass.html