"The Man Who Knew Infinity" is a 2015 British biographical drama film that tells the story of the Indian mathematician Srinivasa Ramanujan. The film is based on the 1991 biography of the same name by Robert Kanigel. It stars Dev Patel as Ramanujan and Jeremy Irons as his mentor, the Cambridge mathematician G. H. Hardy. The story follows Ramanujan's journey from growing up poor in Madras, India, to earning admittance to Cambridge University during World War I, where he makes pioneering contributions to mathematical theories under Hardy's guidance
. The original book by Robert Kanigel details Ramanujan's life and work, highlighting his self-taught genius, his intuitive approach to mathematics, and his collaboration with Hardy, which profoundly impacted the field. The biography also explores the cultural and personal challenges Ramanujan faced, including his struggles with health and acceptance in England
. The film premiered at the 2015 Toronto International Film Festival and was well-received for its portrayal of this remarkable mathematician's life and legacy
. It offers an inspiring story about perseverance, intellectual brilliance, and cross-cultural friendship. In summary, "The Man Who Knew Infinity" refers both to the acclaimed biography by Robert Kanigel and its film adaptation, chronicling the extraordinary life and achievements of Srinivasa Ramanujan, one of the greatest mathematical minds of the 20th century
