This leads us to another contribution of leonhard euler to graph theory, namely euler's polyhedron theorem or simply euler's formula . 这是我们引向L尤拉对图论的另一个贡献,即尤拉多面体定理,或简称尤拉公式。
This leads us to another contribution of leonhard euler to graph theory , namely euler ' s polyhedron theorem or simply euler ' s formula 这是我们引向l ?尤拉对图论的另一个贡献,即尤拉多面体定理,或简称尤拉公式。
This leads us to another contribution of leonhard euler to graph theory , namely euler ' s polyhedron theorem or simply euler ' s formula 这是我们引向l 尤拉对图论的另一个贡献,即尤拉多面体定理,或简称尤拉公式。
Leonhard euler " , , " for since the fabric of the universe is most perfect and the work of a most wise creator , nothing at all takes place in the universe in which some rule of maximum or minimum does not appear . " , 因为宇宙的结构是最完善的而且是最明智的上帝的创造,因此,如果在宇宙里没有某种极大或极小的法则,那就根本不会发生任何事情.