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fred.wang@free.fr2e693b42014-03-12 09:49:59 +00001<!doctype html>
2<html>
3 <head>
4 <title>invisible operators</title>
5 <meta charset="utf-8"/>
6 </head>
7 <body>
8
9 <!-- These examples are taken from http://www.w3.org/TR/MathML/chapter3.html#presm.invisibleops.
10 The invisible operator glyphs should render as empty box and, per the operator dictionary, should not have space around them. -->
11 <math>
12 <mrow>
13 <mi>f</mi>
14 <mo>&#x2061;<!--FUNCTION APPLICATION--></mo>
15 <mrow>
16 <mo>(</mo>
17 <mi>x</mi>
18 <mo>)</mo>
19 </mrow>
20 </mrow>
21 </math>
22 <math>
23 <mrow>
24 <mi>sin</mi>
25 <mo>&#x2061;<!--FUNCTION APPLICATION--></mo>
26 <mi>x</mi>
27 </mrow>
28 </math>
29 <math>
30 <mrow>
31 <mi>x</mi>
32 <mo>&#x2062;<!--INVISIBLE TIMES--></mo>
33 <mi>y</mi>
34 </mrow>
35 </math>
36 <math>
37 <msub>
38 <mi>m</mi>
39 <mrow>
40 <mn>1</mn>
41 <mo>&#x2063;<!--INVISIBLE SEPARATOR--></mo>
42 <mn>2</mn>
43 </mrow>
44 </msub>
45 </math>
46 <math>
47 <mrow>
48 <mn>2</mn>
49 <mo>&#x2064;<!-- INVISIBLE PLUS --></mo>
50 <mfrac>
51 <mn>3</mn>
52 <mn>4</mn>
53 </mfrac>
54 </mrow>
55 </math>
56
57 </body>
58</html>