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sgyin

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Çómax{a: A+ a*B>=0}; ÊýѧÃèÊöΪ
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a s.t. A+a*B >=0
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sgyin

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Originally posted by sgyin at 2010-12-04 23:44:30:
Çómax{a: A+ a*B>=0}; ÊýѧÃèÊöΪ
          max                 a
a s.t. A+a*B >=0
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max{a: A+ a*B>=0}        <=>    max{a: A>=-a*B}            <=>
max{a: (1/(-a))*A <=B}   <=>    max{a: (1/(-a)) <=B./A}  <=>
max{a: (1/a) >=-B./A}     <=>    min {1/a: (1/a) >=-B./A}
ËùÒÔËùÇóµÄa=1/max(-B./A)
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