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itemscope itemtype="https://schema.org/ListItem" itemprop="itemListElement"><span itemprop="name">Math</span><meta itemprop="position" content="2"></li>
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<h1 id="math">Math</h1>
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<p>The <code>math</code> shortcode generates beautiful formatted math and chemical formulae using the <a href="https://mathjax.org/" target="_blank">MathJax</a> library.</p>
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<span class="math align-center">
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$$\left( \sum_{k=1}^n a_k b_k \right)^2 \leq \left( \sum_{k=1}^n a_k^2 \right) \left( \sum_{k=1}^n b_k^2 \right)$$
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</span>
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<div class="box-label"><i class="fa-fw fas fa-exclamation-circle"></i> Note</div>
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<div class="box-content">
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<p>This only works in modern browsers.</p>
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</div>
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</div>
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<h2 id="usage">Usage</h2>
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<p>While the examples are using shortcodes with named parameter it is recommended to use codefences instead. This is because more and more other software supports Math codefences (eg. GitHub) and so your markdown becomes more portable.</p>
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<p>You are free to also call this shortcode from your own partials.</p>
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<div class="box notices cstyle note">
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<div class="box-label"><i class="fa-fw fas fa-exclamation-circle"></i> Note</div>
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<div class="box-content">
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<p>To use codefence syntax you have to turn off <code>guessSyntax</code> for the <code>markup.highlight</code> setting (<a href="#configuration">see the configuration section</a>).</p>
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<div class="tab-panel" data-tab-group="shortcode-parameter">
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<div class="tab-nav">
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<div class="tab-nav-title">​</div>
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<button
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data-tab-item="codefence"
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class="tab-nav-button tab-panel-style cstyle initial active"
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onclick="switchTab('shortcode-parameter','codefence')"
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>
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<span class="tab-nav-text">codefence</span>
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</button>
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<button
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data-tab-item="shortcode"
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class="tab-nav-button tab-panel-style cstyle initial"
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onclick="switchTab('shortcode-parameter','shortcode')"
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>
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<span class="tab-nav-text">shortcode</span>
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</button>
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<button
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data-tab-item="partial"
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class="tab-nav-button tab-panel-style cstyle initial"
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onclick="switchTab('shortcode-parameter','partial')"
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>
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<span class="tab-nav-text">partial</span>
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</button>
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</div>
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<div class="tab-content-container">
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<div
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data-tab-item="codefence"
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class="tab-content tab-panel-style cstyle initial active">
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<div class="tab-content-text">
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<div class="wrap-code highlight"><pre tabindex="0" class="chroma"><code class="language-md" data-lang="md"><span class="line"><span class="cl">```math { align="center" }
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</span></span><span class="line"><span class="cl">$$\left( \sum_{k=1}^n a_k b_k \right)^2 \leq \left( \sum_{k=1}^n a_k^2 \right) \left( \sum_{k=1}^n b_k^2 \right)$$
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</span></span><span class="line"><span class="cl">```</span></span></code></pre></div></div>
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</div>
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<div
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data-tab-item="shortcode"
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class="tab-content tab-panel-style cstyle initial">
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<div class="tab-content-text">
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<div class="wrap-code highlight"><pre tabindex="0" class="chroma"><code class="language-go" data-lang="go"><span class="line"><span class="cl"><span class="p">{{<</span> <span class="nx">math</span> <span class="nx">align</span><span class="p">=</span><span class="s">"center"</span> <span class="p">>}}</span>
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</span></span><span class="line"><span class="cl"><span class="err">$$\</span><span class="nf">left</span><span class="p">(</span> <span class="err">\</span><span class="nx">sum_</span><span class="p">{</span><span class="nx">k</span><span class="p">=</span><span class="mi">1</span><span class="p">}^</span><span class="nx">n</span> <span class="nx">a_k</span> <span class="nx">b_k</span> <span class="err">\</span><span class="nx">right</span><span class="p">)^</span><span class="mi">2</span> <span class="err">\</span><span class="nx">leq</span> <span class="err">\</span><span class="nf">left</span><span class="p">(</span> <span class="err">\</span><span class="nx">sum_</span><span class="p">{</span><span class="nx">k</span><span class="p">=</span><span class="mi">1</span><span class="p">}^</span><span class="nx">n</span> <span class="nx">a_k</span><span class="p">^</span><span class="mi">2</span> <span class="err">\</span><span class="nx">right</span><span class="p">)</span> <span class="err">\</span><span class="nf">left</span><span class="p">(</span> <span class="err">\</span><span class="nx">sum_</span><span class="p">{</span><span class="nx">k</span><span class="p">=</span><span class="mi">1</span><span class="p">}^</span><span class="nx">n</span> <span class="nx">b_k</span><span class="p">^</span><span class="mi">2</span> <span class="err">\</span><span class="nx">right</span><span class="p">)</span><span class="err">$$</span>
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</span></span><span class="line"><span class="cl"><span class="p">{{<</span> <span class="o">/</span><span class="nx">math</span> <span class="p">>}}</span></span></span></code></pre></div></div>
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</div>
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<div
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data-tab-item="partial"
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class="tab-content tab-panel-style cstyle initial">
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<div class="tab-content-text">
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<div class="wrap-code highlight"><pre tabindex="0" class="chroma"><code class="language-go" data-lang="go"><span class="line"><span class="cl"><span class="p">{{</span> <span class="nx">partial</span> <span class="s">"shortcodes/math.html"</span> <span class="p">(</span><span class="nx">dict</span>
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</span></span><span class="line"><span class="cl"> <span class="s">"page"</span> <span class="p">.</span>
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</span></span><span class="line"><span class="cl"> <span class="s">"content"</span> <span class="s">"$$left( \sum_{k=1}^n a_k b_k \right)^2 \leq \left( \sum_{k=1}^n a_k^2 \right) \left( \sum_{k=1}^n b_k^2 \right)$$"</span>
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</span></span><span class="line"><span class="cl"> <span class="s">"align"</span> <span class="s">"center"</span>
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</span></span><span class="line"><span class="cl"><span class="p">)}}</span></span></span></code></pre></div></div>
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</div>
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</div>
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</div>
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<h3 id="parameter">Parameter</h3>
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<table>
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<thead>
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<tr>
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<th>Name</th>
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<th>Default</th>
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<th>Notes</th>
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</tr>
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</thead>
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<tbody>
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<tr>
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<td><strong>align</strong></td>
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<td><code>center</code></td>
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<td>Allowed values are <code>left</code>, <code>center</code> or <code>right</code>.</td>
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</tr>
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<tr>
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<td><em><strong><content></strong></em></td>
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<td><em><empty></em></td>
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<td>Your formuale.</td>
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</tr>
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</tbody>
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</table>
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<h2 id="configuration">Configuration</h2>
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<p>MathJax is configured with default settings. You can customize MathJax’s default settings for all of your files thru a JSON object in your <code>config.toml</code> or override these settings per page thru your pages frontmatter.</p>
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<p>The JSON object of your <code>config.toml</code> / frontmatter is forwarded into MathJax’s configuration object.</p>
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<p>See <a href="https://docs.mathjax.org/en/latest/options/index.html" target="_blank">MathJax documentation</a> for all allowed settings.</p>
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<div class="box notices cstyle note">
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<div class="box-label"><i class="fa-fw fas fa-exclamation-circle"></i> Note</div>
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<div class="box-content">
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<p>To use codefence syntax you have to turn off <code>guessSyntax</code> for the <code>markup.highlight</code> setting.</p>
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</div>
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</div>
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<h3 id="global-configuration-file">Global Configuration File</h3>
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<div class="wrap-code highlight"><pre tabindex="0" class="chroma"><code class="language-toml" data-lang="toml"><span class="line"><span class="cl"><span class="p">[</span><span class="nx">params</span><span class="p">]</span>
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</span></span><span class="line"><span class="cl"> <span class="nx">mathJaxInitialize</span> <span class="p">=</span> <span class="s2">"{ \"chtml\": { \"displayAlign\": \"left\" } }"</span>
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</span></span><span class="line"><span class="cl">
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</span></span><span class="line"><span class="cl"><span class="p">[</span><span class="nx">markup</span><span class="p">]</span>
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</span></span><span class="line"><span class="cl"> <span class="p">[</span><span class="nx">markup</span><span class="p">.</span><span class="nx">highlight</span><span class="p">]</span>
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</span></span><span class="line"><span class="cl"> <span class="c"># if `guessSyntax = true`, there will be no unstyled code even if no language</span>
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</span></span><span class="line"><span class="cl"> <span class="c"># was given BUT Mermaid and Math codefences will not work anymore! So this is a</span>
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</span></span><span class="line"><span class="cl"> <span class="c"># mandatory setting for your site if you want to use Math codefences</span>
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</span></span><span class="line"><span class="cl"> <span class="nx">guessSyntax</span> <span class="p">=</span> <span class="kc">false</span></span></span></code></pre></div><h3 id="pages-frontmatter">Page’s Frontmatter</h3>
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<div class="wrap-code highlight"><pre tabindex="0" class="chroma"><code class="language-toml" data-lang="toml"><span class="line"><span class="cl"><span class="err">+++</span>
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</span></span><span class="line"><span class="cl"><span class="nx">mathJaxInitialize</span> <span class="p">=</span> <span class="s2">"{ \"chtml\": { \"displayAlign\": \"left\" } }"</span>
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</span></span><span class="line"><span class="cl"><span class="err">+++</span></span></span></code></pre></div><h2 id="examples">Examples</h2>
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<h3 id="inline-math">Inline Math</h3>
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<div class="wrap-code highlight"><pre tabindex="0" class="chroma"><code class="language-md" data-lang="md"><span class="line"><span class="cl">Inline math is generated if you use a single <span class="sb">`$`</span> as a delimiter around your formulae: {{<span class="p"><</span> <span class="nt">math</span> <span class="p">></span>}}$\sqrt{3}${{<span class="p"><</span> <span class="p">/</span><span class="nt">math</span> <span class="p">></span>}}</span></span></code></pre></div><p>Inline math is generated if you use a single <code>$</code> as a delimiter around your formulae:
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<span class="math align-center">$\sqrt{3}$</span></p>
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<h3 id="blocklevel-math-with-right-alignment">Blocklevel Math with Right Alignment</h3>
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<div class="wrap-code highlight"><pre tabindex="0" class="chroma"><code class="language-md" data-lang="md"><span class="line"><span class="cl">If you delimit your formulae by two consecutive <span class="sb">`$$`</span> it generates a new block.
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</span></span><span class="line"><span class="cl">
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</span></span><span class="line"><span class="cl">{{<span class="p"><</span> <span class="nt">math</span> <span class="na">align</span><span class="o">=</span><span class="s">"right"</span> <span class="p">></span>}}
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</span></span><span class="line"><span class="cl">$$\left( \sum_{k=1}^n a_k b_k \right)^2 \leq \left( \sum_{k=1}^n a_k^2 \right) \left( \sum_{k=1}^n b_k^2 \right)$$
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</span></span><span class="line"><span class="cl">{{<span class="p"><</span> <span class="p">/</span><span class="nt">math</span> <span class="p">></span>}}</span></span></code></pre></div><p>If you delimit your formulae by two consecutive <code>$$</code> it generates a new block.</p>
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<span class="math align-right">
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$$\left( \sum_{k=1}^n a_k b_k \right)^2 \leq \left( \sum_{k=1}^n a_k^2 \right) \left( \sum_{k=1}^n b_k^2 \right)$$
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</span>
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<h3 id="codefence">Codefence</h3>
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<p>You can also use codefences.</p>
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<div class="wrap-code highlight"><pre tabindex="0" class="chroma"><code class="language-md" data-lang="md"><span class="line"><span class="cl"><span class="s">```math
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</span></span></span><span class="line"><span class="cl"><span class="s"></span>$$\left( \sum_{k=1}^n a_k b_k \right)^2 \leq \left( \sum_{k=1}^n a_k^2 \right) \left( \sum_{k=1}^n b_k^2 \right)$$
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</span></span><span class="line"><span class="cl"><span class="s">```</span></span></span></code></pre></div>
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<span class="math align-center">$$\left( \sum_{k=1}^n a_k b_k \right)^2 \leq \left( \sum_{k=1}^n a_k^2 \right) \left( \sum_{k=1}^n b_k^2 \right)$$</span><h3 id="chemical-formulae">Chemical Formulae</h3>
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<div class="wrap-code highlight"><pre tabindex="0" class="chroma"><code class="language-md" data-lang="md"><span class="line"><span class="cl">{{<span class="p"><</span> <span class="nt">math</span> <span class="p">></span>}}
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</span></span><span class="line"><span class="cl">$$\ce{Hg^2+ ->[I-] HgI2 ->[I-] [Hg^{II}I4]^2-}$$
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</span></span><span class="line"><span class="cl">{{<span class="p"><</span> <span class="p">/</span><span class="nt">math</span> <span class="p">></span>}}</span></span></code></pre></div>
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<span class="math align-center">
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$$\ce{Hg^2+ ->[I-] HgI2 ->[I-] [Hg^{II}I4]^2-}$$
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</span>
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<script>
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function useMathJax( config ){
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if( !Object.assign ){
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return;
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}
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window.MathJax = Object.assign( window.MathJax || {}, {
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loader: {
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load: ['[tex]/mhchem']
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},
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startup: {
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elements: [
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'.math'
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]
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},
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tex: {
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inlineMath: [
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['$', '$'],
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['\\(', '\\)']
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]
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},
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options: {
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enableMenu: false
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}
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}, config );
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}
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useMathJax( JSON.parse("{}") );
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</script>
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<script id="MathJax-script" async src="../../js/mathjax/tex-mml-chtml.js?1698697695"></script>
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<script src="../../js/theme.js?1698697695" defer></script>
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</body>
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</html>
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