fung

Originally posted by milk~~ at 2006-5-8 10:38 PM:
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對~~!  k6 a+ z# Q& `$ R7 ~/ b6 k6 E
simple harmonic motion

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仲要with damping

fung

Originally posted by gaye at 2006-5-8 11:35 PM:( Y* g  ^/ M1 ~

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但假如我唔係 North Pole jump 落...

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咁我諗要睇你點define上同落
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好似好廢...8 G* S) V" P! k# {7 e8 i7 X0 x
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3 v) L+ F, q9 a4 t8 {即係話如果你設由north -> south為落
0 l; F* K' R. w  i& g7 v7 n由core去到south, 對north而言依然叫落
& i% h, A& w7 u2 kvice versa- P6 E2 Y! r) J- m

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反而有樣野你要bear in mind ge係
9 R' k7 V* b/ K: l$ |由core出發, 要input energy