Differentiating

Remember:

1. *e* is a number whose value is about 2.72.

2. *e* is used as the base for the exponential and logarithm functions,
*e*^{x} and .

The function *e*^{x} has the following amazing property:

The derivative of *e*^{x} is just *e*^{x} again. That's kind of like giving birth
to yourself, a very difficult event to achieve, and one that would get