title: Conventions, Style, and Usage for Clojure Constants?
body: <p>What are the best practices for defining constants in Clojure in terms of style, conventions, efficiency, etc.                                                                                                                              </p>
  
  <p>For example, is this right?</p>
  
  <p><code>(def *PI* 3.14)</code></p>
  
  <p>Questions:</p>
  
  <p>Should constants be capitalized in Clojure?</p>
  
  <p>Stylistically, should they have the asterisk (*) character on one or both sides?</p>
  
  <p>Any computational efficiency considerations I should be aware of?</p>