MarkdownPad

1. Problem: HTML cannot be rendered: the view has crashed awesomium: Awesomium.Windows.Controls.WebControl
   solution: Win+R to open regedit: change the following value from 1 to 0
   HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa\FipsAlgorithmPolicy\Enabled

2. Problem: How to suppport Latex: MathJax?
   solution: tools > Options > Advanced > HTML Head Editor, add the following:

   <script type="text/javascript"
      src="http://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML">
   </script>

   After adding the above, a simple example in the MarkDownPad: When $a \ne 0$, there are two solutions to $ax^2 + bx + c = 0$ and they are:

   $$x = {-b \pm \sqrt{b^2-4ac} \over 2a}$$

Tips:

1. insert image: <center><img src="http://....jpg" width=50% border="0"></center>