Function: solar-atn2

solar-atn2 is a byte-compiled function defined in solar.el.gz.

Signature

(solar-atn2 X Y)

Documentation

Arctangent of point X, Y.

Source Code

;; Defined in /usr/src/emacs/lisp/calendar/solar.el.gz
(defun solar-atn2 (x y)
  "Arctangent of point X, Y."
  (if (zerop x)
      (if (> y 0) 90 270)
    (solar-arctan (/ y x) (solar-xy-to-quadrant x y))))