;; Provide a meaningful error message if we are running on
;; bare (non-float) emacs.
-;; Can't test for 'floatp since that may be defined by float-imitation
-;; packages like float.el in this very directory.
(if (fboundp 'atan)
nil
;; provide an easy hook to tell if we are running with floats or not.
;; define pi and e via math-lib calls. (much less prone to killer typos.)
-(defconst pi (* 4 (atan 1)) "The value of Pi (3.1415926...)")
-(defconst e (exp 1) "The value of e (2.7182818...)")
+(defconst pi (* 4 (atan 1)) "The value of Pi (3.1415926...).")
+(defconst e (exp 1) "The value of e (2.7182818...).")
;; Careful when editing this file ... typos here will be hard to spot.
;; (defconst pi 3.14159265358979323846264338327
;; "The value of Pi (3.14159265358979323846264338327...)")
(defconst degrees-to-radians (/ pi 180.0)
- "Degrees to radian conversion constant")
+ "Degrees to radian conversion constant.")
(defconst radians-to-degrees (/ 180.0 pi)
- "Radian to degree conversion constant")
+ "Radian to degree conversion constant.")
;; these expand to a single multiply by a float when byte compiled