E566 -- De inductione ad plenam certitudinem evehenda
(English Translation of Title)
This paper presents the resolution of integers as the sum of four squares, after the influence of Lagrange. Then, in section 9, Euler talks about the resolution of integers into three triagonal numbers.
According to the
records, it was presented to the St. Petersburg Academy on October 19, 1775.
Originally published in Acta Academiae Scientarum Imperialis Petropolitinae 4, 1784, pp. 38-48
Opera Omnia: Series 1, Volume 4, pp. 116 - 124
- Reprinted in Commentat. arithm. 2, 1849, pp. 134-139 [E566a]
- A handwritten French translation of this treatise can be found in the library of the observatory in
Uccle, near Brussels.
- Original Publication: E566
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