Monthly Archives: September 2006

Judging a Book by Its Cover

That’s what I occasionally do when I pick out books in the library. I look at those with nice covers, or those with familiar covers (for example the Contemporary Maths series from AMS), then I look at the title and … Continue reading

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Maths and French

Mathematicians are like Frenchmen: whatever you say to them they translate into their own language and forthwith it is something entirely different Johann Wolfgang von Goethe

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Recurring Decimals

Came across a funny little problem last week. Explain the following: For primes [tex]p \ge 7[/tex] , the decimal expansion of [tex]\frac{1}{p}[/tex] is non-terminating. Is there a formula for the number of repeating digits? [tex]\frac{1}{7} = 0.\overline{142857}[/tex] 6 digits [tex]\frac{1}{11} … Continue reading

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