Function: solar-arccos

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

Signature

(solar-arccos X)

Documentation

Arccosine of X.

Source Code

;; Defined in /usr/src/emacs/lisp/calendar/solar.el.gz
(defun solar-arccos (x)
  "Arccosine of X."
  (let ((y (sqrt (- 1 (* x x)))))
    (solar-atn2 x y)))