There's also the math-themed band from the movie "Proof" that had a silent song they called "i" (their imaginary number). http://www.imdb.com/title/tt0377107/q

There's also the math-themed band from the movie "Proof" that had a silent song they called "i" (their imaginary number). http://www.imdb.com/title/tt0377107/quotes?item=qt0392968 http://www.imdb.com/title/tt0377107/quotes?item=qt0392968