title: Raising elements in a vector to a power
body: <p>I am trying to input a vector and parameter p, which in turn should raise each element of the vector to the power p. So far I have tried mapping the numeric tower function power, but that has proved unsuccessful. What would be the easiest way to raise each element of a vector to a power p?</p>
  
  <pre><code>(defn p' [x p] 
          (map power x p))
  </code></pre>