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Cahier 1
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_
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Pages liminaires
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_
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Article
Intriguing infinite words composed of zeros and ones
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1
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Article
Dreiecke, Teildreiecke und Kreise
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9
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Article
Is the spiral effect psychological?
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21
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Article
Wolstenholme's theorem revisited
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35
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Article
An inequality for the ratio of polynomials
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37
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Article
Angle sum of polygons in space
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41
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Rubrique
Aufgaben
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44
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Pages complémentaires
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_
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Cahier 2
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_
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Pages liminaires
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_
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Article
Cycles cross ratio : an invitation
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49
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Article
Isogonal cevians and inequalities for quotients of cevians
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62
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Article
Unit squares with unit line segments
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68
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Article
Unlikely leading digits of powers of 2
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77
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Article
The Garfunkel-Bankoff inequality and the Finsler-Hadwiger inequality
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82
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Rubrique
Aufgaben
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85
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Compte rendu de lecture
Rezensionen
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90
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Pages complémentaires
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_
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Cahier 3
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_
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Pages liminaires
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_
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Article
Another extension of Lobachevsky's formula
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93
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Article
Regression ellipses via hyperbolic geometry
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101
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Article
Approximation of polynomials by Hermite interpolation
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113
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Article
Isosceles tetrahedrons with integer edges and volume in the Z x Z x Z grid
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123
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Article
A remark on an identity involving products of binomial coefficients
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127
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Article
A simple proof of the Fundamental Theorem of Algebra
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131
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Compte rendu de lecture
Rezensionen
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133
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Rubrique
Aufgaben
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135
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Pages complémentaires
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_
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Cahier 4
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_
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Pages liminaires
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_
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Article
Daniel Bernoulli's "immensly fertile equation" : notes on relations between a nonlinear and a linear second order equation
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141
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Article
Die Infizierung des Z²
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155
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Article
The equation x/y + y/z + z/x = 4 revisited
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168
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Article
Hermite's identity and the quadratic reciprocity law
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171
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Article
Two proofs of Bondy's theorem on induced subsets and two related questions
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174
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Compte rendu de lecture
Rezensionen
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178
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Rubrique
Aufgaben
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180
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Pages complémentaires
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_
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