The number e is a very important number in mathematics. It is defined as th limit of (1+(1/n))^n as n approaches infinity. This was discovered because this is the equation for compound interest (you will probably very quickl learn that I am an ardent advocate for capitalism). Numerically, it is approximately 2.718281828.
e is a very impotant number because when it is used as the base of an exponential function, its rate of change is a constant multiple of itself. This makes it very important for the calculating of halflives, population growth, and many other things involving differential equations.
This is a fairly short, experimental post. As I right more of them I intend for them to get longer and more in depth.