This file is indexed.

/usr/share/javascript/mathjax/test/sample-eqrefs.html is in libjs-mathjax 2.6.1-1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
<!DOCTYPE html>
<html>
<head>
<title>MathJax Equation References</title>
<!-- Copyright (c) 2012-2015 The MathJax Consortium -->
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1">

<script type="text/x-mathjax-config">
  MathJax.Hub.Config({ TeX: { equationNumbers: {autoNumber: "all"} } });
</script>
<script type="text/javascript" src="../MathJax.js?config=TeX-AMS_HTML"></script>

<style>
h1 {
  background: #CCCCCC;
  padding: .2em 1em;
  border-top: 3px solid #666666;
  border-bottom: 3px solid #999999;
}
</style>

</head>
<body>

<center>
<h1>A test of Equation References</h1>
</center>

<div style="padding:0 2em">
<hr>
Here is a labeled equation:
$$x+1\over\sqrt{1-x^2}\label{ref1}$$
with a reference to ref1: \ref{ref1},
and another numbered one with no label:
$$x+1\over\sqrt{1-x^2}$$
This one uses \nonumber:
$$x+1\over\sqrt{1-x^2}\nonumber$$
<p>
<HR>
<p>
Here's one using the equation environment:
\begin{equation}
x+1\over\sqrt{1-x^2}
\end{equation}
and one with equation* environment:
\begin{equation*}
x+1\over\sqrt{1-x^2}
\end{equation*}
<p>
<HR>
<p>
This is a forward reference [\ref{ref2}] and another \eqref{ref2} for the 
following equation:
$$x+1\over\sqrt{1-x^2}\label{ref2}$$
More math:
$$x+1\over\sqrt{1-x^2}$$
Here is a ref inside math: \(\ref{ref2}+1\) and text after it.

\begin{align} 
x& = y_1-y_2+y_3-y_5+y_8-\dots 
&& \text{by \eqref{ref1}}\\ 
& = y'\circ y^* && \text{(by \eqref{ref3})}\\ 
& = y(0) y' && \text {by Axiom 1.} 
\end{align} 

Here's a bad ref [\ref{ref4}] to a nonexistent label.
<p>
<HR>
<p>
An alignment:
\begin{align}
a&=b\label{ref3}\cr
&=c+d
\end{align}
and a starred one:
\begin{align*}
a&=b\cr
&=c+d
\end{align*}

</div>

</body>
</html>