# III. Mémoire sur les quantités imaginaires

```@article{BueIIIMS,
title={III. M{\'e}moire sur les quantit{\'e}s imaginaires},
author={Marc Bu{\'e}e},
journal={Philosophical Transactions of the Royal Society of London},
pages={23 - 88}
}```
• M. Buée
• Philosophy
• Philosophical Transactions of the Royal Society of London
1. Ces signes ont des significations opposées. Considérés comme signes d’opérations arithmétiques, + et — sont les signes, l'un de l'addition, l'autre de la soustraction. Considérés comme signes d'opérations géométriques, ils indiquent des directions opposées. Si l'un, par exemple, signifie qu'une ligne doit être tirée de gauche à droite, rautre signifie qu'elle doit etre tirée de droite à gauche.
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