| [ QuizWit ] in KIDS 글 쓴 이(By): iLUSiON (띠띠빤쮸) 날 짜 (Date): 2005년 7월 27일 수요일 오후 01시 24분 14초 제 목(Title): spherical geometry.... given point P and Q on a unit sphere..... Let Z = (0,0,1) the north pole.... we define inner product using @. So P@Q = cos (theta) where theta is the angle between P and Q. Based on this notation, express P@Q as a function of P@Z and Q@Z. I lerned this interesting geometry problem while working on spherical harmonics.... ^^ iLUSiON - le plus grand de tous http://cyworld.nate.com/ilusion |