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Home > PC > Chapter 3 > Lesson 3.3.2 > Problem 3-127


We can use the idea of solving a power equation to find the base of a natural log. Recall the natural log () from your calculator.

  1. Enter . You should end up with

  2. Change this to . Convert your equation from log form to exponent form and solve for the base. Write your answer out to five decimal places.

    This number you just found is called , which is the base of natural log. The number is an irrational number which is very important in mathematics. You will learn more about this number later in chapter 8.