<p>We got <a href="https://3dprinting.meta.stackexchange.com/questions/314/can-we-get-mathjax-enabled">MathJax enabled</a>. Today I learned that there is even more! We could have <a href="https://worldbuilding.meta.stackexchange.com/questions/9710/can-we-extend-mhchem-support-in-mathjax-to-include-physical-units?cb=1"><strong>support for Physical units</strong> enabled as part of the mhchem package</a>! We use physical units <strong>a lot</strong> and demand the SI formatting. Let me quote from Worldbuilding:</p>
<blockquote>
<p>Chemistry Stack Exchange is obviously the main consumer of this feature and has a <a href="https://worldbuilding.meta.stackexchange.com/questions/9710/can-we-extend-mhchem-support-in-mathjax-to-include-physical-units?cb=1">nice FAQ on its use</a>. The chemists get two things that we don't:</p>
<ul>
<li><code>\require{mhchem}</code> is implicit... you get support automatically without having to require it explicitly.</li>
<li>They get physical unit formatting via <code>$\pu{273.15 K}$</code>, which currently renders as a grumpy error on WB.SE and WB meta that looks [with only mhchem enabled] like this <a href="https://i.stack.imgur.com/NyXoU.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/NyXoU.png" alt="mathjax markup error" /></a></li>
</ul>
</blockquote>
<p><strong>Can we have that too? Pretty please?</strong> I am tired of having to type <code>$273.15\ \text{K}$</code> and such, especially if it is complex things in the unit!</p>

[{'answer_id': 550, 'author': '0scar', 'author_id': 5740, 'author_profile': 'https://3dprinting.meta.stackexchange.com/users/5740', 'pm_score': 2, 'selected': False, 'text': '<p>I support this request for people that do want to use the support for physical units.</p>\n<p><em>(vote up this answer if you are in favor)</em></p>\n<hr />\n<p>For values and units I haven\'t used the MathJax notation (only for complex equations), I\'ve always used the html characters for formatting values and units.</p>\n<p>The example from the question would be written as:</p>\n<pre><code>273.15&amp;nbsp;K\n</code></pre>\n<p>which renders to &quot;273.15\xa0K&quot;</p>\n<p>or in Celsius:</p>\n<pre><code>0&amp;nbsp;&amp;deg;C\n</code></pre>\n<p>which renders to &quot;0\xa0°C&quot;.</p>\n<p>The drawback of using the LaTeX style from MathJax (and presumably with mhchem support) is that the rendered value and unit are in a different font, for example:</p>\n<div class="s-table-container">\n<table class="s-table">\n<thead>\n<tr>\n<th>Text rendering</th>\n<th>MathJax rendering</th>\n<th>MathJax code</th>\n</tr>\n</thead>\n<tbody>\n<tr>\n<td>273.15\xa0K</td>\n<td><span class="math-container">$273.15\\ \\text{K}$</span></td>\n<td><code>$273.15\\ \\text{K}$</code></td>\n</tr>\n<tr>\n<td>0\xa0°C</td>\n<td><span class="math-container">$0\\ ^\\text{o}\\text{C}$</span></td>\n<td><code>$0\\ ^\\text{o}\\text{C}$</code> or <code>$0\\ ^\\circ\\text{C}$</code></td>\n</tr>\n</tbody>\n</table>\n</div>'}, {'answer_id': 551, 'author': '0scar', 'author_id': 5740, 'author_profile': 'https://3dprinting.meta.stackexchange.com/users/5740', 'pm_score': 0, 'selected': False, 'text': '<p>I do not support this request to support physical units.</p>\n<p><em>(vote up this answer if you are not in favor)</em></p>\n'}, {'answer_id': 553, 'author': 'Slate', 'author_id': 29400, 'author_profile': 'https://3dprinting.meta.stackexchange.com/users/29400', 'pm_score': 3, 'selected': True, 'text': '<p>The deed is done. Behold! In all its glory:</p>\n<p><span class="math-container">$$\\pu{273.15 K}$$</span></p>\n'}]
['https://3dprinting.meta.stackexchange.com/questions/537', 'https://3dprinting.meta.stackexchange.com', 'https://3dprinting.meta.stackexchange.com/users/8884/']