Image by Couleur on Pixabay · Pixabay License
Jean-Robert Argand
Sign in to saveSwiss mathematician (1768-1822)
Key facts
- Born
- July 18, 1768, Geneva , Republic of Geneva
- Died
- August 13, 1822 (1822-08-13) (aged 54), Paris
- Citizenship
- Republic of Geneva, and then Switzerland (since 1815)
- Known for
- Argand diagram and proof of fundamental theorem of algebra
- Fields
- Mathematics
via Wikipedia infobox
Wikidata facts
- Instance of
- human
- Gender
- male
- Citizenship
- Switzerland
- Place of birth
- Geneva
- Place of death
- Paris
- Occupation
- book printer
- Languages spoken
- French
- Native language
- French
- Notable work
- magnitude of a complex number
- Field of work
- complex number
Show 5 more facts
- date of birth
- 1768-07-18
- date of death
- 1822-08-13
- name in native language
- Jean-Robert Argand
- maintained by WikiProject
- WikiProject Mathematics
- municipal affiliation of a Swiss national
- Geneva
via Wikidata · CC0
~4 min read
Encyclopedic overview
Quantites Imaginaires Argand 1806
Jean-Robert Argand ( UK: /ˈɑːrɡænd/, US: /ˌɑːrˈɡɑːn(d)/, French: [ʒɑ̃ ʁɔbɛʁ aʁɡɑ̃]; July 18, 1768 – August 13, 1822) 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.
Excerpted from Wikipedia’s “Jean-Robert Argand” article, available under the CC BY-SA 4.0 licence.