Months ago, figure skater Michelle Kwan and former Olympic champion Christopher Dean huddled at a practice session, listening to a piece of music -- Ravel's Bolero -- that Dean and Jayne Torvill had used in a legendary performance. As they planned choreography for this winter's competitive season, they sought the perfect mix of passion, emotion, drama, power and richness. And mathematics. For the first time in her career, Kwan recalled, she clutched a piece of paper while on the ice, studying point values attached to various spins, jumps and footwork. Kwan, one of the most popular and accomplished skaters in the sport's history, wasn't sure if she needed creativity to make the challenging piece come to life, or a calculator.