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Add MMLorHTML customization example, and IE8 info

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Davide P. Cervone 2011-03-07 20:36:12 -05:00
parent 34ece09700
commit 08e0e9f697
1 changed files with 31 additions and 15 deletions
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docs/source/output.rst
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@ -89,16 +89,32 @@ the abilities of your user's browser.
You can customize which choice to make on a browser-by-browser basis
or a global basis. See the ``config/default.js`` file or the
:ref:`Configuring MMLorHTML <configure-MMLorHTML>` section for futher
details.
details. As an example, this configuration tells MathJax to use HTML-CSS
output rather than native MathML support for Firefox:
.. code-block:: html
<script type="text/x-mathjax-config">
MathJax.Hub.Config({
MMLorHTML: { prefer: { Firefox: "HTML" } }
});
</script>
<script type="text/javascript"
src="http://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML">
</script>
With this configuration, MathML output will be used only for IE with the
MathPlayer plugin (Firefox is the only other browser to have native MathML
support that is sufficient for use with MathJax). Note, however, that a
user can employ the MathJax contectual menu to select the other renderer if
he or she wishes.
MathJax produces MathML that models the underlying mathematics as best
it can, rather than using complicated hacks to improve output for a
particular MathML implementation. When you make the choice to use the
NativeMML output processor, you are making a trade-off: gaining speed
at the expense of quality and reliability, a decision that should not
be taken lightly. Note, however, that a user can employ the MathJax
contectual menu to select the other renderer if he or she
wishes.
be taken lightly.
.. _html-css-with-ie8:
@ -106,16 +122,16 @@ wishes.
HTML-CSS with IE8
=================
Internet Explorer 8 has at least eight different rendering modes in
which it can operate, and that are triggered by the `DOCTYPE` of the
document being viewed. Its "quirks" mode is its fastest mode, and its
"IE8 standards" mode is its slowest. This is the mode triggered by
strict HTML document types, and since most modern content management
systems now include a `DOCTYPE` that activates "standards" mode, IE8
will operate in its slowest manner. This is particularly apparent
when MathJax is used, since IE8 in standards mode runs 20 to 30 times
slower than it does in its IE7 emulation mode, and 60 times slower
than in quirks mode.
Internet Explorer 8 has at least eight different rendering modes in which
it can operate, and that are triggered by the `DOCTYPE` of the document
being viewed. Its "quirks" mode is its fastest mode, and its "IE8
standards" mode is its slowest. This is the mode triggered by strict HTML
document types, and since most modern content management systems now
include a `DOCTYPE` that activates "standards" mode, IE8 will operate in
its slowest manner. This is particularly apparent when MathJax is used,
since IE8 in standards mode runs 20 to 30 times slower than it does in its
IE7 emulation mode, and 60 times slower than in quirks mode, on the sample
equations page in ``test/sample.html``.
Most users find this speed reduction unacceptable when there is much
mathematics on the page. To overcome this problem, you may wish to
@ -138,6 +154,6 @@ that your users install the `MathPlayer plugin
<http://www.dessci.com/en/products/mathplayer/>`_, which will render
the mathematics much more quickly.
It appears that IE9 in IE9 standards mode may perform faster than IE8, but
It appears that IE9 in IE9 standards mode may perform better than IE8, but
since IE9 is still in beta testing as of this writing, we have yet to see
exactly what the performance of MathJax in IE9 will be like.