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+<?xml version="1.0" encoding="iso-8859-1" ?>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
+ "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+<!--http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd-->
+<html xmlns="http://www.w3.org/1999/xhtml"
+>
+<head><title>common problems for MathML</title>
+<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
+<meta name="generator" content="TeX4ht (https://tug.org/tex4ht/)" />
+<meta name="originator" content="TeX4ht (https://tug.org/tex4ht/)" />
+<!-- xhtml,th4,index -->
+<meta name="src" content="mn.tex" />
+<link rel="stylesheet" type="text/css" href="mn.css" />
+<meta name="viewport" content="width=device-width, initial-scale=1" />
+</head><body
+>
+ <a
+ name="index6-30001"></a><p class="rightline"><a
+ href="mn.html#mml.html" >up</a></p> <a
+ name="mml-prob">
+ <h3 class="SubSectionHead"><a
+ name="QQ1-6-31"></a>Some Sources of Problems for MathML</h3>
+<!--l. 4069--><p class="noindent" >
+</p><ol type="a" >
+<li>Broken math formulas, such as &#8216;<span
+class="cmtt-10">$R=\{x|x$ is real $\}$</span>&#8217; instead of &#8216;<span
+class="cmtt-10">$R=\{x|x \mbox{ is real } \}$</span>&#8217;.
+</li>
+<li>Math mode employment for presenting nonmath content, such as &#8216;<span
+class="cmtt-10">$$\vbox{...}$$ </span>&#8217; instead of
+&#8216;<span
+class="cmtt-10">\begin{center}\vbox{...}\end{center}</span>&#8217;. </li>
+<li>Unmatched parentheses within entries of arrays, such as &#8216;<span
+class="cmtt-10">\begin{array}...(... &amp; ...)...\end{array}</span>&#8217; instead
+of &#8216;<span
+class="cmtt-10">\begin{array}...\left(... \right.&amp; \left. ...\right)...\end{array}</span>&#8217;. </li>
+<li>Unmatched parentheses within math, such as &#8216;<span
+class="cmtt-10">$a = b)$</span>&#8217; instead of &#8216;<span
+class="cmtt-10">$\left.a = b\right)$</span>&#8217;. It is also possibl to
+use &#8216;mathml-&#8217; command line option without need to modify the first form, but it may result in wrong parentheses
+size. </li>
+<li>Incorrect annotation of delimiters, such as &#8216;<span
+class="cmtt-10">\bigl\{...\bigr|...\bigr\}</span>&#8217; instead of &#8216;<span
+class="cmtt-10">\bigl\{...\bigg|...\bigr\}</span>&#8217;
+</li>
+<li>Missing grouping for bases of subscripts and superscripts, such as &#8216;<span
+class="cmtt-10">10^6</span>&#8217; instead of &#8216;<span
+class="cmtt-10">{10}^6</span>&#8217;. (Some fixing of the
+problem can be requested through a &#8216;-cxhtmml&#8217; command line option for t4ht.c. For instance, &#8216;<span
+class="cmtt-10">mzlatex file "" ""</span>
+<span
+class="cmtt-10">"-cxhtmml"</span>&#8217;.)
+<!--l. 4116--><p class="noindent" ></p></li>
+<li>Missing grouping for subscripts and suprscripts, such as &#8216;<span
+class="cmtt-10">A_\mathit{...}</span>&#8217; instead of &#8216;<span
+class="cmtt-10">A_{\mathit{...}}</span>&#8217;. (LaTeX
+allows indirect access to the content of the operands; TeX4ht requires direct access.)
+<!--l. 4123--><p class="noindent" ></p></li>
+<li>Use of the operators &#8216;<span
+class="cmtt-10">^</span>&#8217; and &#8216;<span
+class="cmtt-10">_</span>&#8217;, instead of &#8216;<span
+class="cmtt-10">\sb</span>&#8217; and &#8216;<span
+class="cmtt-10">\sp</span>&#8217;, outside the presence of TeX4ht. (TeX4ht becomes active
+only at the &#8216;<span
+class="cmtt-10">\begin{document}</span>&#8217; command. The &#8216;<span
+class="cmtt-10">early_</span>&#8217; and &#8216;<span
+class="cmtt-10">early^</span>&#8217; options extend this awareness to the
+preambles of the source latex documents.)
+<!--l. 4129--><p class="noindent" ></p></li>
+<li>If math environments nested within tabular environments cause <a
+ href="mml-issues.html" name="mml-issues.html" >problems</a> enclose them within braces (for instance, &#8216;<span
+class="cmtt-10">\begin{tabular}{c} \begin{minipage}{4in} {</span>
+<span
+class="cmtt-10">\begin{eqnarray} x &amp; = &amp; y \end{eqnarray} } \end{minipage} \end{tabular}</span>&#8217;).
+ </li></ol>
+
+ <hr />
+<!--l. 4208--><p class="indent" > <small>Generated August 24, 2020 - <a href="/tex4ht/">tex4ht home page</a></small></p>
+</body></html>