fung

Originally posted by milk~~ at 2006-5-8 10:38 PM:8 |& p3 r  C! b

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simple harmonic motion

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仲要with damping

fung

Originally posted by gaye at 2006-5-8 11:35 PM:  w; s+ K& l' p( a1 B
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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...$ c5 e4 l7 X& k, q
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即係話如果你設由north -> south為落4 @9 T. Z, N: S* r. K7 O, U7 w
由core去到south, 對north而言依然叫落
6 K* f, J) Z# {8 Q7 S- tvice versa
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) {, y+ y( y7 a" R; B反而有樣野你要bear in mind ge係
+ I" I8 ?6 C" r$ s( r% @由core出發, 要input energy