🗊Magic squares

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Magic squares, слайд №1Magic squares, слайд №2Magic squares, слайд №3Magic squares, слайд №4Magic squares, слайд №5Magic squares, слайд №6Magic squares, слайд №7Magic squares, слайд №8Magic squares, слайд №9
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Magic squares
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Magic squares

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Magic squares, слайд №2
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Historical reference
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Historical reference

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Historical reference During the archeological excavations in China and India there were found square amulets. The square was divided into nine squares, each of which was written by one number from 1 to 9. It was remarkable that the sum of the numbers in each row, each column and each of the two diagonals were equal to one and the same number of 15. Such squares became known as magical. The appearance of magic squares was closely connected with the superstitions and prejudices. This link explains the origin of the name «magic».
Описание слайда:
Historical reference During the archeological excavations in China and India there were found square amulets. The square was divided into nine squares, each of which was written by one number from 1 to 9. It was remarkable that the sum of the numbers in each row, each column and each of the two diagonals were equal to one and the same number of 15. Such squares became known as magical. The appearance of magic squares was closely connected with the superstitions and prejudices. This link explains the origin of the name «magic».

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Magic squares, слайд №5
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Table of calculation of the frequency of occurrence» to magic squares n≥ 3
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Table of calculation of the frequency of occurrence» to magic squares n≥ 3

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Method ‘Terraces’
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Method ‘Terraces’

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Magic squares, слайд №8
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Conclusion
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Conclusion

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