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Remembering spherical trigonometry

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 14 March 2016, pp. 18

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Defining trigonometric functions via complex sequences

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 14 March 2016, pp. 923

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Should we play on your lawn or mine?

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 14 March 2016, pp. 2433

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Packing a rectangle with m x (m + 1) rectangles

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 14 March 2016, pp. 3447

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Picking genuine zeros of cubics in the Tschirnhaus method

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 14 March 2016, pp. 4853

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Some properties of Kiepert lines of a triangle

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 14 March 2016, pp. 5467

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On the classification of convex quadrilaterals

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 14 March 2016, pp. 6885

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Calculus meets the birthday problem

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 14 March 2016, pp. 8692

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Convex polygons as carriers

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 14 March 2016, pp. 93102

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Notes
100.01 Heronian triangles

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 14 March 2016, pp. 103108

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100.02 Square pyramidal numbers and the multiplication table

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 14 March 2016, pp. 108111

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100.03 Evaluating the probability integral by annular partition

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 14 March 2016, pp. 111113

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100.04 Converses of a ‘curious’ theorem of Cesàro on conditionally convergent series

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 14 March 2016, pp. 113118

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100.05 Another evaluation of ζ (2)

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 14 March 2016, pp. 118119

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100.06 Using linear transformations to solve quadratic equations

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 14 March 2016, pp. 119124

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100.07 Yet another proof of the SteinerLehmus theorem

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 14 March 2016, pp. 124126

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100.08 Pythagoras theorem by sliding a triangle

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 14 March 2016, pp. 126128

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100.09 Extremal distance ratios

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 14 March 2016, pp. 129130

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100.10 Dice problems with generating function solutions

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 14 March 2016, pp. 131137

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100.11 A trinomial identity from both a tiling and an expansion

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 14 March 2016, pp. 137139

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