Zone d'identification
Cote
Add. MS a/202/132
Titre
Letter from Augustus De Morgan
Date(s)
- 23 Feb. 1857 (Production)
Niveau de description
Pièce
Étendue matérielle et support
4 pp
Zone du contexte
Nom du producteur
Histoire archivistique
Source immédiate d'acquisition ou de transfert
Zone du contenu et de la structure
Portée et contenu
7 Camden Street, N.W. - ADM has found 'a mechanical mistake which I find in all writers - Poisson states it broadly in his last edition. I take the case of it which belongs to a point vdv = Xdx + Ydy + Zdz throwing out reactions, which produce no effect', which he then works out. In a postscript he shows a simple construction to find the centre of gravity of a four sided figure.