Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!apple!bloom-beacon!tut.cis.ohio-state.edu!ukma!xanth!mcnc!decvax!bhjat!bhj
From: bhj@bhjat.UUCP (Burt Janz)
Newsgroups: comp.sources.games.bugs
Subject: Re: Lunar Lander
Summary: ENIX has it too...
Message-ID: <286@bhjat.UUCP>
Date: 3 Jun 89 13:52:44 GMT
References: <AYUnOZ200Xo=M41klw@andrew.cmu.edu> <107518@sun.Eng.Sun.COM> <953@maestro.htsa.aha.nl> <735@dutrun.UUCP>
Reply-To: bhj@bhjat.UUCP (Burt Janz)
Organization: BHJ Associates, Nashua, NH
Lines: 13


Here's an extract from ENIX math.h.  ENIX is System V.3.2.

(much other stuff omitted)
/* some useful constants */
#define M_PI	3.14159265358979323846
#define M_PI_2	1.57079632679489661923
#define M_PI_4	0.78539816339744830962
#define M_1_PI	0.31830988618379067154
#define M_2_PI	0.63661977236758134308
#define M_2_SQRTPI	1.12837916709551257390

Burt Janz