hexo-theme-icarus/layout/plugin/mathjax.ejs

<% if (!head && plugin !== false) { %>
<%- _js(cdn('mathjax', '2.7.5', 'unpacked/MathJax.js?config=TeX-MML-AM_CHTML'), true) %>
<script>
document.addEventListener('DOMContentLoaded', function () {
    MathJax.Hub.Config({
        'HTML-CSS': {
            matchFontHeight: false
        },
        SVG: {
            matchFontHeight: false
        },
        CommonHTML: {
            matchFontHeight: false
        },
        tex2jax: {
            inlineMath: [
                ['$','$'],
                ['\\(','\\)']
            ]
        }
    });
});
</script>
<% } %>