The symbol "🔢" represents a set of numerical digits, often used to denote numbers or mathematical calculations. It is commonly associated with the concept of counting, arithmetic operations, and numerical representations. The Sigma sign (Σ) is a mathematical symbol used to represent the sum of a series of numbers or terms. It indicates that the terms should be added together, starting from a specified value and ending at another value. The Sigma sign is frequently employed in various branches of mathematics, such as calculus and statistics, to express summations and evaluate equations involving sequences or series.