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Result 1 to 20 of 33 total

Complex numbers and Desargues’ theorem. (English)
Math. Spectr. 48, No. 3, 120-122 (2016).
Classification: G40 F50
1
Van Aubel’s theorem using complex numbers. (English)
Math. Spectr. 48, No. 3, 113-115 (2016).
Classification: G40 F50
2
The Euler conic via Pascal. (English)
Math. Spectr. 47, No. 3, 108-110 (2015).
Classification: G40
3
The Euler line of a triangle. (English)
Math. Spectr. 48, No. 1, 3-5 (2015).
Classification: G40 G70
4
The law of the lever for centre points. (Die Waagenformel für Mittelpunkte.) (German)
Wurzel 47, No. 11, 255-258 (2013).
Classification: G40 G90 I90 H70
5
Multiplication of points in the plane. (Multiplikation von Punkten in der Ebene.) (German)
Wurzel 43, No. 1, 12-16 (2009).
Classification: G90 F50 H70
6
Relative arithmetic. (English)
Math. Spectr. 41, No. 3, 106-109 (2009).
Classification: H40 Reviewer: Gerd Walther (Kiel)
7
Addition of points in the plane. (Addition von Punkten in der Ebene.) (German)
Wurzel 42, No. 12, 258-263 (2008).
Classification: G90
8
With Einstein from circles to squares. (Mit Einstein von Kreisen zu Quadraten.) (German)
Wurzel 41, No. 9-10, 226-230 (2007).
Classification: M50 G50 R20
9
Change of basis and the golden section. (Basiswechsel und der goldene Schnitt.) (German)
Wurzel 41, No. 3-4, 56-60 (2007).
Classification: N20
10
Circles of best fit. (English)
Math. Spectr. 39, No. 3, 119-122 (2007).
Classification: I60 Reviewer: Gerd Walther (Kiel)
11
From squares to circles by courtesy of Einstein. (English)
Math. Spectr. 38, No. 2, 51-55 (2006).
Classification: H40 M50 Reviewer: Gerd Walther (Kiel)
12
Algebra in the plane using the (projective) ruler. Part 1. (Algebra in der Ebene mit dem (projektiven) Lineal. T. 1.) (German)
Wurzel 39, No. 12, 273-278 (2005).
Classification: G90
13
Centres, medians and central lines. (Moyennes, médianes et droites moyennes - Mittelpunkte, Mediane und Mittellinien.) (French)
Wurzel 39, No. 7, 158-164 (2005).
Classification: G40
14
From Pascal to Einstein. (De Pascal à Einstein.) (French)
Math. Péd., No. 146, 37-46 (2004).
Classification: G70 M50
15
From Pascal to Einstein. (Von Pascal zu Einstein.) (German)
Wurzel 39, No. 1, 16-22 (2005).
Classification: G70 M50
16
Simple properties of a circle. (English)
Math. Spectr. 37, No. 1, 20-22 (2004).
Classification: G70
17
Change of base and the golden section. (English)
Math. Spectr. 36, No. 2, 29-32 (2004).
Classification: F60
18
Pythagorean quadruples. (English)
Math. Spectr. 34, No. 2, 38-40 (2002).
Classification: F60
19
A geometric approach to Pythagorean Triples. (English)
Math. Spectr. 34, No. 1, 10-12 (2001).
Classification: F60
20
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Result 1 to 20 of 33 total

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