Function: math-real-log2

math-real-log2 is a byte-compiled function defined in calc-bin.el.gz.

Signature

(math-real-log2 X)

Source Code

;; Defined in /usr/src/emacs/lisp/calc/calc-bin.el.gz
(defun math-real-log2 (x)   ;;; calc-internal-prec must be 6
  (let ((res (assq x math-log2-cache)))
    (if res
	(cdr res)
      (let* ((calc-symbolic-mode nil)
	     (calc-display-working-message nil)
	     (log (calcFunc-log x 2)))
	(setq math-log2-cache (cons (cons x log) math-log2-cache))
	log))))