Sigma Symbol (Σ) - Mathematical Summation Icon #2282756 (License: Personal Use)

This high-contrast image features the uppercase Greek letter Sigma (Σ) in vibrant lime green with a bold dark green border, set against a pure black background for maximum visibility. The clean, geometric design emphasizes its role as a universal symbol for summation in calculus, statistics, and programming. Its clarity makes it ideal for educational materials, technical documentation, and UI icons requiring instant recognition.

Used in math textbooks, online learning platforms, coding IDEs, and data visualization tools; targets students, educators, developers, and analysts seeking visual reinforcement of summation concepts.