<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; color: rgb(0, 0, 0); font-size: 13px; font-family: 'Lucida Sans', sans-serif;"><div>Hello again,</div><div><br></div><div>Sorry for my previous message. I have been able to install the yhcmex font and now get no error in typesetting but the wideparen does not appear in the output, only the small circle, as shown in the attached screen capture.</div><div>Many thanks for your help and kindest regards,</div><div><br></div><div>Gérald</div><div><br></div><div><div><p style="margin-right: 0px; margin-left: 0px; font-size: 12px; font-family: 'Lucida Sans';">………………………………………………………………………</p><p style="margin-right: 0px; margin-left: 0px; font-size: 12px; font-family: 'Lucida Sans';">Gérald Tenenbaum</p><p style="margin-right: 0px; margin-left: 0px; font-size: 12px; font-family: 'Lucida Sans';">Professeur</p><p style="margin-right: 0px; margin-left: 0px; font-size: 12px; font-family: 'Lucida Sans';">Institut Élie Cartan</p><p style="margin-right: 0px; margin-left: 0px; font-size: 12px; font-family: 'Lucida Sans';">Université de Lorraine</p><p style="margin-right: 0px; margin-left: 0px; font-size: 12px; font-family: 'Lucida Sans';">BP 70239</p><p style="margin-right: 0px; margin-left: 0px; font-size: 12px; font-family: 'Lucida Sans';">54506 Vandœuvre lès Nancy Cedex</p><p style="margin-right: 0px; margin-left: 0px; font-size: 12px; font-family: 'Lucida Sans';">France</p><p style="margin-right: 0px; margin-left: 0px; font-size: 12px; font-family: 'Lucida Sans'; min-height: 15px;"><br></p><p style="margin-right: 0px; margin-left: 0px; font-size: 12px; font-family: 'Lucida Sans';">Téléphone : +33(0) 383 68 46 02</p><p style="margin-right: 0px; margin-left: 0px; font-size: 12px; font-family: 'Lucida Sans';">Télécopie : +33(0)<span style="color: rgb(123, 122, 167);"> </span>383 68 45 96</p><p style="margin-right: 0px; margin-left: 0px; font-size: 12px; font-family: 'Lucida Sans';">Courriel : <a href="mailto:gerald.tenenbaum@univ-lorraine.fr">gerald.tenenbaum@univ-lorraine.fr</a></p><p style="margin-right: 0px; margin-left: 0px; font-size: 12px; font-family: 'Lucida Sans';">.................................................................................</p></div></div><div><br></div><span id="OLK_SRC_BODY_SECTION"><div style="font-family:Calibri; font-size:11pt; text-align:left; color:black; BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; PADDING-RIGHT: 0in; BORDER-TOP: #b5c4df 1pt solid; BORDER-RIGHT: medium none; PADDING-TOP: 3pt"><span style="font-weight:bold">De : </span> "Daniel H. Luecking" <<a href="mailto:luecking@uark.edu">luecking@uark.edu</a>><br><span style="font-weight:bold">Date : </span> mercredi 16 novembre 2016 21:03<br><span style="font-weight:bold">À : </span> Gérald Tenenbaum <<a href="mailto:gerald.ten@free.fr">gerald.ten@free.fr</a>>, "<a href="mailto:tex-eplain@tug.org">tex-eplain@tug.org</a>" <<a href="mailto:tex-eplain@tug.org">tex-eplain@tug.org</a>><br><span style="font-weight:bold">Objet : </span> Re: widering<br></div><div><br></div><div><meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"><style type="text/css" style="display:none"><!--P{margin-top:0;margin-bottom:0;} --></style><div dir="ltr" style="font-size:12pt;color:#000000;background-color:#FFFFFF;font-family:'Courier New',monospace;"><p><br></p><p>I am going to assume that you want the \widering from </p><p>yhmath.sty.</p><p><br></p><p>This was a bit tough, mostly because there is a bug </p><p>in its definition in yhmath.sty. But here goes:</p><p><br>
\input eplain</p><p>% load the yh font for \wideparen<br>
\font\yhten =yhcmex10<br>
\font\yhseven=yhcmex10 at 7pt<br>
\font\yhfive =yhcmex10 at 5pt</p><p>% set up the math family for using it<br>
\newfam\yhfam<br>
\textfont\yhfam\yhten<br>
\scriptfont\yhfam\yhseven<br>
\scriptscriptfont\yhfam\yhfive</p><p>\def\yhex{\fam\yhfam}</p><p>% determine the hex digit for this new math family <br>
\edef\yhhex{\ifcase\yhfam 0\or 1\or 2\or 3\or 4\or 5\or 6\or 7\or 8\or<br>
9\or A\or B\or C\or D\or E\or F\fi}<br><br>
\def\wideparen{\mathaccent"0\yhhex F3}<br>
\def\ring{\mathaccent"17}<br>
\def\widering#1{\ring{\wideparen{#1}}}<br>
Test: $\widering{ABC}$.<br><br>
\bye</p><p><br></p><p>Oddly, cmr contains the ring accent, but plain TeX doesn't</p><p>have a command to access it directly (just \aa for the accent </p><p>over an "a").</p><p><br></p><p>Dan<br></p><p><br></p><div id="Signature"><div name="divtagdefaultwrapper" style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:; margin:0"><div style="font-family:Tahoma; font-size:13px"><div style="font-family:Tahoma; font-size:13px"><div style="font-family:Tahoma; font-size:13px"><div style="font-family:Tahoma; font-size:13px"><div style="font-family:Tahoma; font-size:13px"><div style="font-family:Tahoma; font-size:13px"><font size="3" face="Courier New">Daniel H. Luecking [<a href="mailto:luecking@uark.edu">luecking@uark.edu</a>]
<br>
Department of Mathematical Sciences<br>
1 University of Arkansas<br>
Fayetteville, AR, USA 72701-1201</font><br></div></div></div></div></div></div></div></div><div style="word-wrap:break-word; color:rgb(0,0,0); font-size:13px; font-family:'Lucida Sans',sans-serif"><hr tabindex="-1" style="display:inline-block; width:98%"><div id="divRplyFwdMsg" dir="ltr"><font style="font-size:11pt" color="#000000" face="Calibri,sans-serif"><b>From:</b> tex-eplain <<a href="mailto:tex-eplain-bounces@tug.org">tex-eplain-bounces@tug.org</a>> on behalf of Gérald Tenenbaum <<a href="mailto:gerald.ten@free.fr">gerald.ten@free.fr</a>><br><b>Sent:</b> Tuesday, November 15, 2016 5:10 PM<br><b>To:</b> <a href="mailto:tex-eplain@tug.org">tex-eplain@tug.org</a><br><b>Subject:</b> [tex-eplain] widering</font><div> </div></div><div><div>Hello,</div><div><br></div><div>How can one include the LaTeX command \widering into Eplain?</div><div>Many thanks for help.</div><div>Regards,</div><div><br></div><div>Gérald</div></div></div></div></div></span></body></html>