Path: utzoo!utgpu!water!watmath!clyde!rutgers!gatech!hao!noao!arizona!naucse!wew
From: wew@naucse.UUCP (Bill Wilson)
Newsgroups: comp.databases
Subject: Re: DB-III+  MATH support
Summary: DB3+ math support
Keywords: trig,constant
Message-ID: <536@naucse.UUCP>
Date: 15 Jan 88 21:19:42 GMT
References: <12673@pyramid.pyramid.com> <69@coot.AUSTIN.LOCKHEED.COM> <1822@orstcs.CS.ORST.EDU>
Organization: Northern Arizona University, Flagstaff, AZ
Lines: 13

In article <1822@orstcs.CS.ORST.EDU>, nacer@mist.cs.orst.edu (Abdenacer Moussaoui C.) writes:
> From what I have tried there is no support for sin() cos() functions.

You may want to try getting a copy of C programming tools for dBASE.
They include a number of stat and math functions not supplied in
DB3+.  It is available from Ashton-Tate.
   
> (2)  Is there such thing as user-defined function in db3+?

No, only third party packages like clipper support them directly.
The C toolbox will let you produce new functions that can be called. 

Bill Wilson