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官翁

Joined 20 August 2010

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/Draft for a general formula for the meridian arc length

Retrieved from "https://en.wikipedia.org/w/index.php?title=User:官翁&oldid=390592811"

Last edited on 13 October 2010, at 23:00

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This page was last edited on 13 October 2010, at 23:00 (UTC).
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