I really enjoy biology. I am also thinking about majoring in biology in college, Im not sure yet what I would want to do with that degree but I will look further into it as the time gets closer.

Summation Notation also known as Sigma Notation. A simple way of expressing the sum of the values of a sequence. This is seen in PreCalculus, Calculus 1 (AP Calc AB), and Calculus 2 (AP Calc BC).