title: emacs split into 3 even windows
body: <p>Quick question: How do I specify the number of characters in a split window?  C-x-3 Splits my window into two windows evenly, but a subsequent split will split one of the windows in half. I'd like 3 equal sized windows.  The documentation says that I should be able to specify the number of characters for the left buffer as a parameter, but I cant seem to get that to work.  Any ideas for syntax? </p>
  
  <p>Thanks.</p>