title: ln (Natural Log) in Python
body: <p>In this assignment I have completed all the problems except this one. I have to create a python script to solve an equation (screenshot).</p>
  <p><a href="https://d20p74l5mne5au.cloudfront.net/vFEwQ.png" rel="noreferrer"><img src="https://d20p74l5mne5au.cloudfront.net/vFEwQ.png" alt="formula" /></a></p>
  <p>Unfortunately, in my research all over the internet I cannot figure out how in the world to either convert ln to log or anything usable, or anything. The code I have written so far is below. I will also post the answer that our teacher says we should get.</p>
  <pre><code>import math
  p = 100
  r = 0.06 / 12
  FV = 4000
  
  n = str(ln * ((1 + (FV * r) / p) / (ln * (1 + r))))
  
  print (&quot;Number of periods = &quot; + str(n))
  </code></pre>
  <p>The answer I should get is 36.55539635919235
  Any advice or help you have would be greatly appreciated!</p>
  <p>Also, we are not using numpy. I already attempted that one.</p>
  <p>Thanks!</p>