Ramanujan's Mathematical Universe: A Guide for Everyone

Bryant McGill · Ramanujan's Mathematical Universe: A Guide for Everyone**Ramanujan's mathematical universe—an intricate tapestry of *q*-series identities, modular symmetries, and analytic surprises—has migrated far beyond number theory to become structural DNA for contemporary quantum physics and string theory. The present exposition (≈ 2400 words) surveys pivotal constructs—tau and theta functions, mock modular forms, zeta-type L-series, "Ramanujan calculus," and associated constants—and tr...