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Re: [obm-l] i^2 = -1 ??

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Subject: Re: [obm-l] i^2 = -1 ??
From: Paulo Cesar <pcesar26@xxxxxxxxx>
Date: Sun, 1 May 2005 16:01:55 -0300
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E a� Buno?!

J� existiam refer�ncias aos complexos muito antes de Gauss. No s�culo
XVI, Cardano e Bombelli usaram um m�todo para resolver equa��es do
terceiro grau operando "normalmente" com ra�zes quadradas de n�meros
negativos. Voc� j� deve ter ouvido falar na F�rmula de Cardano. S� no
s�culo XIX Gauss adotou uma interpreta��o geom�trica para os
complexos.

Um abra�o

Paulo Cesar

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References:
- [obm-l] S�ries Infinitas - Soma
  - From: Maurizio
- Re: [obm-l] S�ries Infinitas - Soma
  - From: Felipe Amaral
- [obm-l] i^2 = -1 ??
  - From: Bruno Bonagura
- Re: [obm-l] i^2 = -1 ??
  - From: F�bio Dias Moreira

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