Shihao Wu c9150d9854 consistency with my original old code. ... I found the result is not perfect, so I checked carefully with the old code. I tested some data with exact parameters. The result is almost the same, the difference is cased by numerical problem. So I commit this version for record.		2013-07-14 13:52:24 +08:00
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CGAL	consistency with my original old code.	2013-07-14 13:52:24 +08:00