👉 The term "overbrace" is a mathematical notation used in mathematics and computer science to represent an expression that involves nested summation or integration. Specifically, it represents the sum of all values from 1 to n inclusive, where n is a variable representing the upper limit of summation. For example: ``` n = 3 sum(n) = ∑(1 + 2 + 3) ``` In this expression, "n" is a variable that represents the number of