title: How to plot a product function in R?
body: <p>I'm trying a problem but first I have to plot in <code>r</code></p>
  
  <pre><code>(x+1)(x+2)...(x+n),
  </code></pre>
  
  <p>with <code>n</code> being a fixed integer.</p>
  
  <p>Any idea how to create this routine?</p>