LaTeXMathJax

These two files show the correspondances between LaTeX and MathJax macros for:

• the set of real number,

• the normal distribution,

• the differential operator,

• using colors in maths expression.

File macros.tex:

\usepackage{color}

\newcommand \RR {\mathbb{R}}
\newcommand \normal [2] {\mathcal{N}\left({#1},{#2}\right)}
\newcommand \dx [2] [] {\mathrm{d}^{#1}\mspace{-1mu}\mathord{#2}}
\newcommand \warning [1] {\textcolor{red}{#1}}

File macros.html:

<script type="text/x-mathjax-config">
MathJax.Hub.Config({
  TeX: {
    Macros: {
      RR: "{\\mathbb{R}}",
      normal: ["{\\mathcal{N}\\left({#1},{#2}\\right)}", 2],
      dx: ["{\\mathrm{d}^{#1}\\mspace{-1mu}\\mathord{#2}}", 2, ""],
      warning: ["\\color{red}{{#1}}", 1]
    }
  }
});
</script>

These files could be included in your .Rmd file with this YAML:

output:
  html_document: 
    includes:
      before_body: macros.html
  pdf_document:
    includes:
      in_header: macros.tex