His proof of the fundamental theorem of algebra was called by The Mathematical Intelligencer “both ingenious and profound
Text from Wikipedia, available under CC BY-SA 4.0.
- #wikipedia
- #event
Figure timeline
Jean-Robert Argand
Jean-Robert Argand was a Genevan amateur mathematician. In 1806, while managing a bookstore in Paris, he published the idea of the geometrical interpretation of complex numbers known as the Argand diagram and is known for the first rigorous proof of the fundamental theorem of algebra.
Text from Wikipedia, available under CC BY-SA 4.0.
science · Genevan mathematician · mathematician · politician · book printer · also Jean-Robert Argand, Argand
Born 18 July 1768 · Died 13 August 1822 · Q315419
6 published statements · 0 followers
See & hear
Photos & media
1 photos
Media from Wikimedia Commons, hotlinked at the source under its own licence — see each file for author and terms.
Live now
In the news
Pulling headlines from trusted outlets — this usually takes a few seconds
Checking the wires…
Feed scan
These are live links, not archived citations — they only join the timeline once a collect run verifies and archives them.
Live pulse
Recent highlights
Most recent outstanding titles, awards, and quotes
- Update
- Update
1978· 1 entry
1822· 1 entry
Died 1822-08-13.
Text from Wikipedia, available under CC BY-SA 4.0.
- #wikidata
- #death
1813· 1 entry
It was republished in the French journal Annales de Mathématiques
Text from Wikipedia, available under CC BY-SA 4.0.
- #wikipedia
- #event
1806· 2 entries
While managing a bookstore in Paris, he published the idea of the geometrical interpretation of complex numbers known as the Argand diagram and is known for the first rigorous proof of the fundamental theorem of algebra
Text from Wikipedia, available under CC BY-SA 4.0.
- #wikipedia
- #event
With his family and, when managing a bookshop there, privately published his Essai sur une manière de représenter les quantités imaginaires dans les constructions géométriques (Essay on a method of representing imaginary
Text from Wikipedia, available under CC BY-SA 4.0.
- #wikipedia
- #event
1768· 1 entry
Born 1768-07-18.
Text from Wikipedia, available under CC BY-SA 4.0.
- #wikidata
- #birth