Subject: Re: Calculations using LISP From: Erik Naggum <erik@naggum.no> Date: 1997/07/22 Newsgroups: comp.lang.lisp Message-ID: <3078520748918110@naggum.no> * Jon S. Anthony | Sure. (sin x), (cos x), (tan x), etc. There are arc-* versions for | these and hyperbolic versions as well. I don't know what or if there | are any required accuracy behaviors for these or not. Also you have | e^x (exp x) and lnx (log x). Once you have those, you can get any of | the rest of what you want. In particular a^x, a > 0, x in R, = | e^(xlna) note that Common Lisp has complex numbers. (log x), x < 0, is valid. (exp (* x (log a))) is more commonly written (expt a x). works when a or x is 0, too. #\Erik -- there was some junk mail in my mailbox. somebody wanted to sell me some useless gizmo, and kindly supplied an ASCII drawing of it. "actual size", the caption read. I selected smaller and smaller fonts until it vanished.