Theo Di Bin ng K¨¨o X k¨¨o n¨ºn c s dng ¨²ng l¨²c, ¨²ng trn v¨¤ ¨²ng tm l. ¨® l¨¤ c¨¢ch nhng ngi chi thng minh gi vng th ch ng v¨¤ bn b theo ui h¨¤nh tr¨¬nh chin thng d¨¤i hi. Chin thut D¡¯Alembert V¨ª d, vi 0.25, nu i ca tr¨ºn thng, ngi t ca n¨¤y s n trn. Nu h¨°a, mt na tin; thua th¨¬ mt ht. C 0.5 y¨ºu cu i ca tr¨ºn phi thng th¨¬ mi n tin; h¨°a hoc thua l¨¤ thua to¨¤n b. Vi k¨¨o 0.75, thng c¨¢ch bit 2 im n , thng 1 n na. C¨°n 1.25 & 1.5, i ca tr¨ºn phi thng c¨¢ch bit t 2 im tr l¨ºn mi gi¨²p ngi chi n trn. V¨¬ t¨ªnh cht c th¨´ v¨¤ him gp, ngi chi cn quan s¨¢t k bng t l, c r m t v¨¤ hiu r bi cnh trn u trc khi quyt nh tham gia c¨¢ . K¨ºnh cc thng trin khai nhiu chng tr¨¬nh u i theo tun nhm mang li gi¨¢ tr ln. Nhng chng tr¨¬nh n¨¤y thu h¨²t h¨¤ng ng¨¤n lt tham gia v¨¬ t l thng lun c cng b minh bch. iu ¨® gi¨²p ngi chi an tm hn khi la chn c¨¢c g¨®i khuyn mi c cung cp thng xuy¨ºn. M¨¢u chy khng dng tr¨ºn mt t Dn n¨¦n cm x¨²c qu¨¢ lu 21 ¨C 12 C th, nh¨¤ c¨¢i s a ra mt mc b¨¤n win c nh, v¨¤ ngi chi s t cc v¨¤o hai la chn: T¨¤i (nu cho rng tng s im n s ln hn mc ¨®) hoc Xu (nu tin rng tng s im s ¨ªt hn). Gic m khng phi bn hong s, m¨¤ bn lng nghe v¨¤ h¨¤nh ng trc khi qu¨¢ mun. ¨® l¨¤ thng ip r r¨¤ng nht ca tim thc d¨¤nh cho bn. Li kt Chin thut D¡¯Alembert Tn dng khuyn mi ¨C Gia tng vn, bt ph¨¢ phn thng

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