<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">
Hi Michael,
<div class=""><br class="">
<div>
<blockquote type="cite" class="">
<div class="">On 27 Mar 2017, at 10:39, Michael Barr <<a href="mailto:barr@math.mcgill.ca" class="">barr@math.mcgill.ca</a>> wrote:</div>
<br class="Apple-interchange-newline">
<div class="">
<div class="">
<div style="font-family: arial, helvetica, sans-serif; font-size: 12pt;" class="">
<div class="">Now I am really confused. I tried the file you sent below and it didn't compile with an error that style file matrix not found. So I changed {matrix} to [matrix] and got a message that \ar not defined. So I changed [matrix] to [all] and it
stopped with the following error message</div>
<div class="">! Xy-pic error: illegal <dir>: \dir { (} not defined.<br class="">
\xyerror@ ...#2}\fi \errmessage {Xy-pic error: #1}<br class="">
}<br class="">
l.9 \xymatrix{A & B\\ C\ar@{{ (}->}[ur] & D }<br class="">
\qquad<br class="">
? </div>
</div>
</div>
</div>
</blockquote>
<div><br class="">
</div>
<div><br class="">
</div>
<div>Sorry, it should start with </div>
<div><br class="">
</div>
<div> \usepackage[barr,matrix]{xy}</div>
<div><br class="">
</div>
<div>to pick up the \newdir{ (}{….} command.</div>
<div>Then the variant \newdir_{ (}{….} can be defined also.</div>
<div><br class="">
</div>
<div>Think: "you cannot have a variant of something that isn’t yet defined".</div>
<div><br class="">
</div>
<br class="">
<blockquote type="cite" class="">
<div class="">
<div class="">
<div style="font-family: arial, helvetica, sans-serif; font-size: 12pt;" class="">
<div class="">I am using the 2016 version of TeXLive, if it matters.<br data-mce-bogus="1" class="">
</div>
<div class=""><br data-mce-bogus="1" class="">
</div>
<div class="">Michael</div>
</div>
</div>
</div>
</blockquote>
<br class="">
</div>
<div><br class="">
</div>
<div>Hope this helps.</div>
<div><br class="">
</div>
<div><span class="Apple-tab-span" style="white-space:pre"></span>Ross</div>
<br class="">
<div apple-content-edited="true" class="">
<div style="font-family: Arial, sans-serif; orphans: 2; widows: 2;" class=""><span class="Apple-style-span" style="font-size: 9px;"><b class=""><span style="font-size: 9pt;" class=""><br class="Apple-interchange-newline">
Dr Ross Moore</span></b></span></div>
<div style="orphans: 2; widows: 2;" class="">
<p style="color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; margin-bottom: 3.75pt;" class="">
<font color="#000000" class=""><b style="color: rgb(119, 119, 119); font-family: Arial, sans-serif; font-size: 9pt; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class="">Mathematics
Dept </b><b style="color: rgb(119, 119, 119); font-family: Arial, sans-serif; font-size: 9pt; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class="">|</b><font color="#777777" face="Arial, sans-serif" class=""><span style="font-size: 9pt;" class=""> 12
Wally</span></font><font face="Arial, sans-serif" class="">’</font><font color="#777777" face="Arial, sans-serif" class=""><span style="font-size: 9pt;" class="">s Walk, 734</span></font><br class="">
<font color="#777777" face="Arial, sans-serif" class=""><span style="font-size: 9pt;" class="">Macquarie University, NSW 2109, Australia</span></font><font color="#777777" size="3" class=""><span style="font-family: 'Times New Roman', serif; font-size: 12pt;" class=""></span></font></font></p>
<p style="font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; font-family: Arial, sans-serif; color: rgb(119, 119, 119); font-size: 7pt; line-height: 11.25pt; margin-bottom: 3.75pt;" class="">
<b class=""><span style="font-size: 9pt;" class=""><font color="#000000" class="">T:</font></span></b><span style="font-size: 9pt;" class=""><font color="#000000" class=""> +61 2 9850 <b class="">8955 | F:</b> </font><a href="tel:%2B61%202%209850%209695" value="+61298509695" target="_blank" class=""><font color="#000000" class="">+61
2 9850 8114</font></a><br class="">
<font color="#000000" class=""><b class="">M:</b><a href="tel:%2B61%20409%20125%20670" value="+61409125670" target="_blank" class="">+61 407 288 255</a><b class=""> | </b>E: </font><a href="mailto:rick.minter@mq.edu.au" target="_blank" class=""><font color="#000000" class="">ross.moore@mq.edu.au</font><font color="#1155cc" class=""><span style="color: black;" class=""></span></font></a><font color="#1155cc" class=""><span style="color: black;" class=""></span></font><span style="color: black;" class=""></span><br class="">
</span></p>
<p style="font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; font-family: Arial, sans-serif; color: rgb(119, 119, 119); font-size: 7pt; line-height: 11.25pt; margin-bottom: 3.75pt;" class="">
<span style="font-size: 9pt;" class=""><span style="color: black;" class=""><a title="Macquarie University" href="http://mq.edu.au/" target="_blank" class="">http://www.maths.mq.edu.au</a></span></span></p>
<p style="font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; font-family: Arial, sans-serif; color: rgb(119, 119, 119); font-size: 7pt; line-height: 11.25pt; margin-bottom: 3.75pt;" class="">
<span style="font-size: 12px; line-height: normal;"><a href="http://mq.edu.au/" target="_blank" style="font-size: 12px; line-height: normal;" class=""><span><br class="Apple-interchange-newline">
<span><img height="58" width="260" apple-inline="yes" id="F21811BA-65CB-46BC-9EC7-AE31FDD21FC4" apple-width="yes" apple-height="yes" src="cid:image001.png@01D030BE.D37A46F0" class=""></span></span></a></span></p>
<p style="font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; font-family: Arial, sans-serif; color: rgb(119, 119, 119); font-size: 7pt;" class="">
<a href="http://mq.edu.au/" target="_blank" class=""><span style="color: rgb(119, 119, 119); font-size: 7pt;" class=""><br class="Apple-interchange-newline">
CRICOS Provider Number 00002J. Think before you print. <br class="">
Please consider the environment before printing this email.</span><span style="font-family: 'Times New Roman', serif; font-size: 12pt;" class=""></span></a></p>
<p style="font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; font-family: Arial, sans-serif; color: rgb(119, 119, 119); font-size: 7pt;" class="">
<a href="http://mq.edu.au/" target="_blank" class=""><span style="color: rgb(119, 119, 119); font-size: 7pt;" class="">This message is intended for the addressee named and may <br class="">
contain confidential information. If you are not the intended <br class="">
recipient, please delete it and notify the sender. Views expressed <br class="">
in this message are those of the individual sender, and are not <br class="">
necessarily the views of Macquarie University.</span></a></p>
</div>
</div>
<br class="">
</div>
</body>
</html>