title: LaTeX Equations Not Rendered on Webpage
body: <p>When I go to a webpage, such as this <a href="http://www.calvin.edu/~rpruim/courses/m343/F12/RStudio/LatexExamples.html" rel="nofollow">page of examples</a>, none of the LaTeX code is being rendered in any of the browsers I try. However, on the same computer, if I create a simple R Markdown file in RStudio and I click Knit HTML, the preview in the RStudio: Preview HTML window shows LaTeX commands being rendered correctly. If I then open the HTML file which was created in any web browser, the LaTeX commands are not rendered. I see ( \log_2(x) ) instead. What must be done to render it in an internet browser ? I have tried three computers and the problem happens on each of them.</p>
  
  <pre><code>other attached packages:
  [1] knitr_1.9
  
  loaded via a namespace (and not attached):
  [1] evaluate_0.5.5 formatR_1.0    stringr_0.6.2  tools_3.1.1
  </code></pre>