car c'est le seul champ central à divergence nulle (évident si l'on pense en termes de flux)sauf pour r = 0, où elle vaut ; ce résultat est le théorème de Gauss pour l'angle solide) ce qui est moins ...

Johann Heinrich Lambert (26 août 1728 à Mulhouse - 25 septembre 1777 à Berlin) est un mathématicien, physicien et astronome alsacien du XVIII e siècle, en fait suisse et allemand d’ascendance ...

Itaú Unibanco Holding S.A. is delivering solid results in credit thanks to continued high rates & credit access initiatives.

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The Canucks seized three out of four possible points this weekend to get themselves back to a .500 point percentage.

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Have you been looking at a Toshiba TV? Before you make a buying decision, it's important to know if you are getting a quality TV. Here's what reviews say.