title: Need web editor with some extra functions
body: <p>I'm searching for WYSIWYG editor, which has some built-in (or maybe plug-in) extra functions such as: drawing math graphics, writing math formulas... etc. Found MathJAX but as far as I know, mathjax requires TeX code input to convert it into graphics, and there is no plug-in for famous open-source web editors (like CKeditor...) </p>
  
  <p>Any suggestions for this purpose?</p>