Notes
108.05 Ramanujan’s proof of Bertrand’s postulate
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- 15 February 2024, pp. 130-134
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108.06 Simple bounds on a sum pertinent to primes
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- 15 February 2024, pp. 135-136
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108.07 De Moivre’s theorem via difference equations
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- 15 February 2024, pp. 136-140
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108.08 Cone and Integral
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- 15 February 2024, pp. 140-142
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108.09 A visual proof that be < eb when b > e
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- 15 February 2024, p. 143
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108.10 Proof without words: ${\rm{tan }}{\pi\over {{\rm{12}}}}{\rm{=2 - }}\sqrt 3 {\rm{, tan }}{{{\rm{5}}\pi } \over {{\rm{12}}}}{\rm{=2 + }}\sqrt {\rm{3}} $
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- 15 February 2024, pp. 143-144
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108.11 Euler’s limit—revisited
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- 15 February 2024, pp. 144-145
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108.12 Proof without words: a lower bound for n!
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- 15 February 2024, p. 146
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108.13 Indeterminate exponentials without tears
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- 15 February 2024, pp. 146-148
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108.14 A triangle number identity
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- 15 February 2024, p. 148
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108.15 The Madhava-Leibniz theorem
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- 15 February 2024, pp. 149-151
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108.16 Golden triangles founded on Kepler’s triangle
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- 15 February 2024, pp. 152-154
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108.17 On a generalisation of the Lemoine axis
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- 15 February 2024, pp. 154-158
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108.18 A one-line proof of the Finsler-Hadwiger inequality
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- 15 February 2024, pp. 158-160
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Teaching Notes
The Devil’s Advocate and the binomial expansion
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- 15 February 2024, pp. 161-162
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A cautionary tale about the pole of polar coordinates
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- 15 February 2024, pp. 162-163
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Another appearance of the golden ratio
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- 15 February 2024, pp. 163-165
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Correspondence
Correspondence
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- 15 February 2024, p. 166
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Correspondence
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- 15 February 2024, p. 166
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Problem Corner
Problem Corner
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- 15 February 2024, pp. 167-171
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