A movie littered with mathematical errors. Some of the most irritating are:
- Gerald Lambeau (played by Stellan Skarsgård) says there is an "advanced Fourier system" on the blackboard, when in fact it is an elementary graph theory problem. At least the answers given were correct.
- The second problem that supposedly took Lambeau and his colleagues "two years to prove" is, in fact, another straight forward graph theory problem: the number of spanning trees on a complete graph. The answer, nn-2 was proven by Cayley in 1889. Also, those tree graphs that Will is drawing have no connection to this theorem.
- Will and Lambeau determine the chromatic polynomial of a graph by simplifying a rational function. This doesn't make any sense. You cannot determine a chromatic polynomial in this manner. The answer they get, however, is correct.