The Commercial Appeal - Go Memphis
‘Infinity’ is a bit too formulaic
The life of the imagination is difficult to capture, let alone to contain, onscreen. For that reason, movies about such original thinkers as famous writers and artists — or, as in “The Man Who Knew Infinity,” the pioneering mathematician Srinivasa Ramanujan — suffer from an inherent difficulty: How do you show, in ways that are at least vaguely cinematic, the stroke of genius?
Dev Patel plays Ramanujan, a self-taught mathematical prodigy from India who died tragically at age 32 after doing groundbreaking work at Cambridge University in the early years of the 20th century. For simplicity’s sake, the film focuses on only one aspect of Ramanujan’s work: his pioneering exploration of number theory, particularly as related to partitions.
The number 4, for instance, can be expressed as the sum of five — and only five — “partitions” of whole numbers: 1+1+1+1; 1+1+2; 1+3; 2+2; and 4. As a number grows larger, approaching infinity, could there be a formula, Ramanujan wondered, that would calculate the number of its partitions?
He thought he had found one. All he had to do was prove it to a skeptical, Anglo-centric academic community.
This is math at its purest — math for math’s sake — and it’s heady, if hardly cinematic, stuff. We watch Ramanujan shuffle back and forth between his digs at Cambridge and the office of his mentor, professor G.H. Hardy (Jeremy Irons), who suspects his protege is right but unrigorous. Hardy pushes him to be more diligent in his proofs.
Ramanujan, meanwhile, equates his grasp of number theory to a religious experience — to a glimpse of God, in short — as something that comes to him intuitively rather than through cold, hard calculation.
“Every single positive integer is one of his friends,” Hardy’s colleague Littlewood (Toby Jones) aptly observes after Ramanujan notices that the number of his taxi, 1729, happens to be “the smallest number expressible as the sum of two cubes in two different ways.” (Such anomalies today have come to be called “taxicab numbers,” after Ramanujan.)
Of course, our hero is also quite ill with
tuberculosis through all of this, so the movie benefits from the poignancy of a brilliant life about to be extinguished. Other sad sub-themes — anti-indian racism, Ramanujan’s pining for his wife back in Madras — add little to the film except cliched sentimentality.
Based on Robert Kanigel’s well-received 1991 biography of Ramanujan, “The Man Who Knew Infinity” tells a great story. It’s just that it’s a little too bythe-book to make anything other than a so-so movie.
“The Man Who Knew Infinity” opens today exclusively at the Collierville Towne 16.