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里面这个式子会不会造成精度不够？

Posted by queyue2004 at 2005-07-28 21:09:11 on Problem 2510
In Reply To:时间一定要double ，用long不行? Posted by:queyue2004 at 2005-07-28 21:02:09 
   
      long time;
      double temp->n;
     
      h = 8.0 * (temp->n) - (1.0 * time - temp->time) / 12.0;

     h = temp->n * 2.0 - (1.0 * time - temp->time) * (1.0 * time - temp->time) / 79.0;

     if (h > 0)
     {
           sum += h;
     } 
     else
     {
          delete node;
     }
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