Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!rice!news
From: dorai@datura.rice.edu (Dorai Sitaram)
Newsgroups: comp.text.tex
Subject: Re: undertilde
Keywords: latex, tilde
Message-ID: <1990Oct4.031651.29338@rice.edu>
Date: 4 Oct 90 03:16:51 GMT
References: <1990Oct4.014728.29527@caen.engin.umich.edu>
Sender: news@rice.edu (News)
Organization: Rice University, Houston
Lines: 15

In article <1990Oct4.014728.29527@caen.engin.umich.edu> oliveria@caen.engin.umich.edu (ROQUE DONIZETE DE OLIVEIRA) writes:
$How can I define a macro (with \def or \newcommand)
$in Latex to to something like \tilde{a} but I want
$the tilde to be at the bottom. I guess you could
$called it \undertilde . I looked at the macro
$for \underbrace but couldn't get my \undertilde to
$work in a similar way.

\def\undertilde#1{{\mathop{#1}\limits_{\smash{\widetilde{\hphantom{#1}}}}}}

$Thanks for any help.

De nada.

--d