title: Finding Inverse Exponential of Number Using C or Objective C
body: <p>How would a programmer like myself learn how to find an inverse exponential of a number? on my calculator 2nd LN or e^x. It is similar in concept to the neperien function on calculator  e.g.  the log of 2 is about 0.3
  and the inverse log or 10^x  of 0.3 is 2.)</p>
  
  <p>Note: This is to be used within an iPhone project using iPhone SDK</p>
  
  <p>Note: Here is an example of what I am needing to compute: then 0.91831 is raised to the power of the inverse exponential of .773848284, or, 0.91831^2.168332164 = 0.831282.</p>