The Man Who Knew Infinity

In 1913, the Indian clerk Srinivasa Ramanujan sent a letter to the renowned English mathematician G. H Hardy. It contained several formulas that Ramanujan had discovered concerning numbers. Although Hardy was initially puzzled by Ramanujan's innovative ideas, he soon realized their significance and arranged for the man to visit Cambridge University. The collaboration between the two men resulted in a series of extraordinary discoveries that revitalized mathematics and changed its course forever.