Engraving of John Napier
Numéro d’image : 11830225
| Portrait after an engraving of John Napier (1550- 1617),Scottish mathematician and inventor of logarithms. Napier came from a landed family,so was educated in France and at St.Andrews. He persued mathematics as a hobby,being more interested in religious controversy. In his long study of imaginary roots he developed decimal notation in addition to a set of logarithms. For this he chose the transendental number e (approximately 2.717) as the base. These are known as Naperian,or natural,logarithms and are most relevant to exponential systems. His logarithms greatly helped Kepler in his calculations of planetary motion | |
| Licence : | Droits gérés |
| Crédit: | Science Photo Library |
| Taille de l’image : | 3551 px × 4949 px |
| Model Release : | Le droit n'est pas encore disponible. Merci de nous contacter avant utilisation. |
| Property Release : | Non requis |
| Restrictions : | - |
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