Geodesic
Die Entdeckungsgeschichte und die Ausnahmestellung Einer Besondered Zahl: e=2,71828182845904523536\dots
The Teaching of Mathematics, II (1999) no. 2, p. 105 Cet article a éte moissonné depuis la source eLibrary of Mathematical Institute of the Serbian Academy of Sciences and Arts

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Mathematics pupils first learn about the irrational numbers $\pi$ and $e$ at the secondary school level. While the appearance of $\pi$ in simple geometrical formulas makes it easy for pupils to grasp its special importance, the significance of $e$ is less clear. The nature of $e$ can best be understood from a historical perspective, In the sixteenth century, work on various mathematical problems led, along different paths, to the discovery of~$e$. In this article, I will outline these paths, and propose that describing them to pupils is the best way to help them understand the uniqueness of~$e$.
Classification : 00A35
Keywords: Irrational numbers, e, Napier's logarithms. 
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     author = {Stefan Krauss},
     title = {Die {Entdeckungsgeschichte} und die {Ausnahmestellung} {Einer} {Besondered} {Zahl:} e=2,71828182845904523536\dots},
     journal = {The Teaching of Mathematics},
     pages = {105 },
     year = {1999},
     volume = {II},
     number = {2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TM2_1999_II_2_a2/}
}
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Stefan Krauss. Die Entdeckungsgeschichte und die Ausnahmestellung Einer Besondered Zahl: e=2,71828182845904523536\dots. The Teaching of Mathematics, II (1999) no. 2, p. 105 . http://geodesic.mathdoc.fr/item/TM2_1999_II_2_a2/