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Re:这样算概率，有错吗？In Reply To:这样算概率，有错吗？ Posted by:achilles at 2005-08-28 16:49:18 if(l<=1.0) p=2.*l/pi;
else p=(2.*(l-sqrt(l*l-1.))+(pi-2.*asin(1./l)))/pi;
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