Free Online Tool to Finding the number of elements in an Intersection (n(A ∩ B))

Arun Sharma is a seasoned tech writer and financial tools specialist with over 10 years of experience crafting high-utility calculators and digital tools that simplify complex tasks. With a background in computer science and a deep passion for user-centric design, Arun combines technical expertise with clear communication to create resources that are accurate, accessible, and actionable. He has authored hundreds of tool-based guides, from financial planning calculators to health, academic, and productivity tools—many of which are embedded in top-ranking websites and widely used by professionals and everyday users alike. His work is grounded in precision, offline usability, and modern responsiveness, ensuring compatibility across platforms including WordPress. When he’s not optimizing algorithms or fine-tuning UI/UX for calculators, Arun shares insights on digital self-reliance, performance metrics, and data privacy in tool development. Trust Arun Sharma for reliable, easy-to-use tools that are built with logic, tested with care, and designed to empower.