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Generalized Trace as "circle of best fit" to <Ax,x>x 保存副本 登录注册 E1t,E2t −10 ≤t≤ 10 11 u=14.333 −10 14.333 12 E1u,E2u 标签 13 Xt=cost·fcost,sint 14 Yt=sint·fcost,sint 15 Xt,Yt −10