<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=utf-8">
<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta name=Generator content="Microsoft Word 12 (filtered medium)"><style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Cambria;
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Consolas;
panose-1:2 11 6 9 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri","sans-serif";}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
p.MsoPlainText, li.MsoPlainText, div.MsoPlainText
{mso-style-priority:99;
mso-style-link:"Plain Text Char";
margin:0in;
margin-bottom:.0001pt;
font-size:10.5pt;
font-family:Consolas;}
span.PlainTextChar
{mso-style-name:"Plain Text Char";
mso-style-priority:99;
mso-style-link:"Plain Text";
font-family:Consolas;}
.MsoChpDefault
{mso-style-type:export-only;}
@page WordSection1
{size:8.5in 11.0in;
margin:56.7pt 42.5pt 56.7pt 85.05pt;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>I am working now with very large text, about 10000 rows of code, 100 files. And suddenly I was not able to compile text. The strange error was in \xymatrix that it cannot compile Russian text. There was not Russian text there. It was not possible to prepare small example, because it was not clear what happened. Separating file by file, I found file where problem was. Then I separated macros which I used in this file and after 4 days of search I found that problem was probably in using macro \Row. When I renamed this macro, everything was fine.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>So why I tell this story. Before recent time was some kind agreement about naming of macros. Like system macros did not use capital letters. But this year I second time meet the case when this agreement is broken. So I cannot be warranted that next time have to rename few more macros. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='font-size:10.5pt;font-family:Consolas;color:#1F497D'>Aleks Kleyn</span><span style='color:#1F497D'><o:p></o:p></span></p><table class=MsoNormalTable border=0 cellspacing=0 cellpadding=0 style='border-collapse:collapse'><tr><td width=734 valign=top style='width:275.4pt;padding:0in 5.4pt 0in 5.4pt'><p class=MsoNormal style='line-height:115%'><a href="http://alekskleyn.dyndns-home.com:4080/"><span style='font-size:10.5pt;line-height:115%;font-family:Consolas;color:blue'>http://alekskleyn.dyndns-home.com:4080/</span></a><span style='font-size:10.5pt;line-height:115%;font-family:Consolas;color:#1F497D'> </span><span style='font-size:12.0pt;line-height:115%;color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal style='line-height:115%'><a href="http://sites.google.com/site/alekskleyn/"><span style='font-size:10.5pt;line-height:115%;font-family:Consolas;color:blue'>http://sites.google.com/site/AleksKleyn/</span></a><span style='font-size:10.5pt;line-height:115%;font-family:Consolas;color:#1F497D'> </span><span style='color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal style='line-height:115%'><a href="http://arxiv.org/a/kleyn_a_1"><span style='font-size:10.5pt;line-height:115%;font-family:Consolas;color:blue'>http://arxiv.org/a/kleyn_a_1</span></a><span style='font-size:10.5pt;line-height:115%;font-family:Consolas;color:#1F497D'> </span><span style='color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal style='line-height:115%'><a href="http://AleksKleyn.blogspot.com/"><span style='font-size:10.5pt;line-height:115%;font-family:Consolas;color:blue'>http://AleksKleyn.blogspot.com/</span></a><span style='color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal style='line-height:115%'><a href="http://kleynaleks.blogspot.com/"><span style='font-size:10.5pt;line-height:115%;font-family:Consolas;color:blue'>http://KleynAleks.blogspot.com/</span></a><span style='color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal style='line-height:115%'><span style='font-size:12.0pt;line-height:115%;font-family:"Times New Roman","serif";color:#1F497D'><o:p> </o:p></span></p></td><td width=466 valign=top style='width:174.85pt;padding:0in 5.4pt 0in 5.4pt'><p class=MsoNormal style='line-height:115%'><span style='color:#1F497D'>Derivative in Banach algebra</span><span style='font-size:12.0pt;line-height:115%;font-family:"Times New Roman","serif";color:#1F497D'><o:p></o:p></span></p><table class=MsoNormalTable border=0 cellspacing=0 cellpadding=0 style='border-collapse:collapse'><tr><td valign=top style='padding:0in 5.4pt 0in 5.4pt'><p class=MsoNormal style='line-height:115%'><i><u><span style='font-family:"Cambria","serif";color:#1F497D'>dx<sup>2</sup></span></u></i><i><u><sup><span style='font-size:12.0pt;line-height:115%;font-family:"Cambria","serif";color:#1F497D'><o:p></o:p></span></sup></u></i></p></td><td rowspan=2 style='padding:0in 5.4pt 0in 5.4pt'><p class=MsoNormal style='line-height:115%'><i><span style='font-family:"Cambria","serif";color:#1F497D'>=1</span></i><i><span style='font-family:"Cambria Math","serif";color:#1F497D'>⊗ </span></i><i><span style='font-family:"Cambria","serif";color:#1F497D'>x+x</span></i><i><span style='font-family:"Cambria Math","serif";color:#1F497D'>⊗</span></i><i><span style='font-family:"Cambria","serif";color:#1F497D'>1</span></i><span style='font-size:12.0pt;line-height:115%;font-family:"Cambria","serif";color:#1F497D'><o:p></o:p></span></p></td></tr><tr><td valign=top style='padding:0in 5.4pt 0in 5.4pt'><p class=MsoNormal style='line-height:115%'><i><span style='font-family:"Cambria","serif";color:#1F497D'>dx</span></i><i><span style='font-size:12.0pt;line-height:115%;font-family:"Cambria","serif";color:#1F497D'><o:p></o:p></span></i></p></td></tr></table><p class=MsoNormal style='line-height:115%'><i><span style='font-family:"Cambria","serif";color:#1F497D'> d<sub> </sub>x<sup>2</sup> =(1</span></i><i><span style='font-family:"Cambria Math","serif";color:#1F497D'>⊗ </span></i><i><span style='font-family:"Cambria","serif";color:#1F497D'>x+x</span></i><i><span style='font-family:"Cambria Math","serif";color:#1F497D'>⊗</span></i><i><span style='font-family:"Cambria","serif";color:#1F497D'>1)</span></i><i><span style='color:#1F497D'> ◦dx</span></i><i><span style='font-family:"Cambria","serif";color:#1F497D'>=dx x+x dx</span></i><span style='font-size:12.0pt;line-height:115%;font-family:"Cambria","serif";color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal style='line-height:115%'><span style='font-size:12.0pt;line-height:115%;font-family:"Times New Roman","serif";color:#1F497D'><o:p> </o:p></span></p></td></tr></table><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>