title: TypeError: 'float' object is not callable
body: <p>I am trying to use values from an array in the following equation:</p>
  
  <pre><code>for x in range(len(prof)):
      PB = 2.25 * (1 - math.pow(math.e, (-3.7(prof[x])/2.25))) * (math.e, (0/2.25)))
  </code></pre>
  
  <p>When I run I receive the following error:</p>
  
  <pre><code>Traceback (most recent call last):
    File "C:/Users/cwpapine/Desktop/1mPro_Chlavg", line 240, in &lt;module&gt;
      PB = float(2.25 * (1 - math.pow(math.e, (-3.7(prof[x])/2.25))) * (math.e, (0/2.25)))
  TypeError: 'float' object is not callable
  </code></pre>
  
  <p>this is probably something simple but I can't quite figure it out.  Any help would be
  greatly appreciated.  Thanks in advance</p>