Talk:Square pyramidal number: Difference between revisions

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== Quadrature of the Parabola with the "square pyramidal number" (new proof) ==
[[File:Figuraxy.jpg|thumb|Quadrature of the Parabola]]
I found that the "square pyramidal number" can be used to prove the Archimedes' theorem on the area of ​​parabolic segment. The entire proof, carried out without the use of "mathematical analysis", is at the following web adress:
https://drive.google.com/file/d/0B4iaQ-gBYTaJMDJFd2FFbkU2TU0/view?usp=sharing