title: How to write correctly <%= t('.title_#{Time.now.wday}') %>?
body: <p>Usually to add a word (for my multilanguage website) I use this system: <code>&lt;%= t('.title') %&gt;</code>
  Now in <code>config/locales/en.yml</code>, I added something like this:</p>
  <pre><code>en:
    home:
      title: Title
      title_0: Finally Sunday! Watch this title
      title_1: Hey! It's monday! This is the Title
  </code></pre>
  <p>And I want to use Time.now.wday and to create something like <code>&lt;%= t('.title_#{Time.now.wday}') %&gt;</code></p>
  <p>But it doesn't work. <strong>How to write it correctly?</strong></p>