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japam
Member since Feb-15-04
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Aug-06-05, 07:14 PM (EST) |
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"dual pappus general"
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just a few thoughts When you look at dual pappus theorem for first time , you wonder why this particular points of intersection are choosed, or in other words how Pappus came to this theorem I wonder if there is not other relationships between the 9 points of intersection that could produce also a point of convergence? jp |
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