Euler's number is the special number A special case is this, where the exponential function has the base e:Common notation you'll see is The exp part is short for exponential, and is reserved to the base e. So, exp(x) means e raised to the x-th power, or whatever term is inside the brackets. For example:The base-e logarithm is called the natural logarithm, denoted as Well done. Take a break, it's time to move on to
The Factorial