Math
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Life without Zero
‘The point about zero is that we don’t need to use it in the operations of daily life. No one goes out to buy zero fish. It is in a way the most civilised of all the cardinals, and its use is only forced on us by the needs of cultivated modes of thought.’― Alfred North…
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Men of Mathematics, Eric Temple Bell (ISBN 978-0-6716-2818-5, Simon & Schuster)
A ‘classic’ from 1937. The subtitle is ‘The Lives and Achievements of the Great Mathematicians from Zeno to Poincaré’. This is not completely correct as the last chapter is dedicated to Cantor and not to Poincaré. The penultimate chapter is for Poincaré. The first chapter is as usual an introduction and Zeno is tackled in…
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The Discovery of Pure Mathematics
‘Pure Mathematics was discovered by Boole in a work which he called The Laws of Thought.’― Bertrand Russell
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The Poet Mathematician
‘It is true that a mathematician who is not also something of a poet will never be a perfect mathematician.’― Karl Wilhelm Theodor Weierstrass
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Hamiltonian words
“I have very long admired Ptolemy’s description of his great astronomical master, Hipparchus, as a labor-loving and truth-loving man. Be such my epitath.” ― William Rowan Hamilton
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Fibonacci Primes
The Fibonacci series is often mentioned so most people are probably familiar with it. It starts with 0, 1, … and all other numbers are obtained by taking the sum of the 2 preceding numbers in the series so we get : 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144,…
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Curious Equations (1)
Came across this equation. Can be proven by simply calculating both sides. (t – 8)3 + (t – 1)3 + (t + 1)3 + (t + 8)3 = (t – 7)3 + (t – 4)3 + (t + 4)3 + (t + 7)3
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Delen door 2
Een man vraagt aan een goochelaar wat zijn specialiteit is. “Meisjes doormidden zagen”, is het antwoord. “Dat is moeilijk zeker ?” “Helemaal niet, ik kon het als kind al.” “Heb je dan zusters ?” “Jawel, drieënhalf.”
