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Américo Tavares's user avatar
Américo Tavares's user avatar
Américo Tavares's user avatar
Américo Tavares
  • Member for 7 years, 10 months
  • Last seen more than a month ago
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About

I am a retired Portuguese electrical engineer. Find out more on my blog, Problemas e Teoremas.

Acordo Ortográfico da Língua Portuguesa de 1990 | Portal da Língua Portuguesa | Critérios de aplicação do Acordo Ortográfico da Língua Portuguesa (1990) | Livro de Estilo | Livro de Estilo/ Pontuação | LX Conjugador | Dicionário Priberam - Conjugar verbos | Linguee En ↔ Pt | Léxico | Dicionário Aulete online

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Score Newest
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7
Ideas to improve the site
Nov 6, 2015
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5
Quantos dias ficaremos em beta privado?
Jul 22, 2015
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4
Quando marcar uma resposta ou pergunta como wiki?
Jul 17, 2015
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4
Error in Bio from "João de Barros" bot?
Jul 17, 2015
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2
Que nome dar para a nossa sala de chat?
Jul 18, 2015
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250
The Basel problem
80
What is the Jacobian matrix?
70
Nice proofs of $\zeta(4) = \frac{\pi^4}{90}$?
60
What is the importance of Calculus in today's Mathematics?
52
What is the result of $\infty - \infty$?

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