Re: Inverse trigonometric functions
Date: 1995/08/31
Message-ID: <809874486snz_at_jlcomp.demon.co.uk>#1/1
In article <41v6k3$6ns_at_theopolis.orl.mmc.com>
troyt_at_sun.com "troy trimble" writes:
: Has anyone out there developed PL/SQL code to compute inverse
: trigonometric functions, in particular arc sine, arc cosine, and
: arc tangent? If so, please let me know either by posting to this
: group or e-mail to troyt_at_csdc02.orl.mmc.com.
This question has come up a few times already in this newsgroup, and several people have volunteered 'infinite series' solutions to the problem.
Two points though: PL/SQL arithmetic is rather slow, and I don't think the usual series for inverse trig functions converge particularly rapidly.
Has anyone tried solving this problem by having a 'trig server' written in C that spends its time waiting on a pipe for calls from clients ? If so, do you have any figures that indicate the cost compared with an infinite series method ?
-- Jonathan LewisReceived on Thu Aug 31 1995 - 00:00:00 CEST