E787 -- Solutio problematis in Actis Lipsiensibus A. 1745 propositi
(Solution of a problem proposed in the Leipzig Acts in 1745)
Summary:
E787 was an unpublished manuscript sent by Euler to Goldbach as an enclosure in a letter he (Euler) was
writing.
According to Eneström, "The problem is: 'Circa datum focum C describere curvam AEBF, ut omnes radii ex C
emissi post binas reflexiones in M et N factus, in ipsum punctum C revertantur.'"
Publication:
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Originally published in correspondance mathematique et physique de quelques celebres geometres
du XVIIIeme siecle publiee par P.H.
Fuss 1, 1843, pp. 341-354
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Opera Omnia: Series n/a, Volume n/a
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