Summation

Summation is a mathematical process of adding a series of numbers together to find their total. It is often represented using the Greek letter sigma (∑) followed by an expression indicating what to add and the range of values. For example, ∑ from i=1 to 4 of i means adding 1 + 2 + 3 + 4, which equals 10. Summation helps organize and simplify the process of adding multiple numbers, especially in situations involving sequences, averages, or mathematical formulas where grouping a large number of additions is necessary.