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487 double px, py, ex, ey; in penalty3() local514 py = (pt[i].y + pt[j].y) / 2.0 - pt[0].y; in penalty3()519 b = ((xy - x*py - y*px) / k + px*py); in penalty3()520 c = ((y2 - 2*y*py) / k + py*py); in penalty3()