The term "x₃" typically refers to a mathematical variable or expression, often used in algebra and calculus. In various contexts, it can represent the third element in a sequence or a specific value in a function. The subscript "3" indicates its position or order, distinguishing it from other variables like x₁ or x₂. In computer science, "x₃" might also denote a specific data point or parameter in programming. It can be used in algorithms, data structures, or even in machine learning models, where multiple variables are analyzed to derive insights or make predictions.