x=sint+sin2t+sin3t+sin4t+sin5t+sin6t+sin7t+2sin8t
y=cost+cos2t+cos3t+cos4t+cos5t+cos6t+cos7t+cos8t+cos9t
間に合わなかったのだが

http://133.104.82.61/webMathematica/tsato/graph05.jsp