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- Q3180572 description "Swiss mathematician".
- Q3180572 description "Swiss mathematician".
- Q3180572 subject Q6592174.
- Q3180572 subject Q6757447.
- Q3180572 subject Q7018039.
- Q3180572 subject Q8106932.
- Q3180572 abstract "Johann Rahn (Latinised form Rhonius) (1622–1676) was a (* 10 March 1622 Töss (Winterthur), † 25 May 1676 in Zurich) Swiss mathematician who is credited with the first use of the division symbol, ÷ (obelus) and the therefore sign, ∴. He is known for his Teutsche algebra, the first time the Geteiltzeichen characters appear in print. The symbol is used in Teutsche Algebra, published in 1659. John Pell collaborated with Rahn in this book, which contains an example of the Pell equation, Pell-loading of the English translation of the book of Rahn. There is a controversy in Pell awards, rather than Rahn, authorship notations. Rahn was also, it seems, mayor of the city of Zurich in 1655.".
- Q3180572 birthDate "1622".
- Q3180572 birthYear "1622".
- Q3180572 deathDate "1676".
- Q3180572 deathYear "1676".
- Q3180572 wikiPageExternalLink Teutsche_Algebra.html?id=ZJg_AAAAcAAJ.
- Q3180572 wikiPageWikiLink Q1196881.
- Q3180572 wikiPageWikiLink Q122323.
- Q3180572 wikiPageWikiLink Q170790.
- Q3180572 wikiPageWikiLink Q3893386.
- Q3180572 wikiPageWikiLink Q471794.
- Q3180572 wikiPageWikiLink Q61751.
- Q3180572 wikiPageWikiLink Q633466.
- Q3180572 wikiPageWikiLink Q6592174.
- Q3180572 wikiPageWikiLink Q6757447.
- Q3180572 wikiPageWikiLink Q7018039.
- Q3180572 wikiPageWikiLink Q74765.
- Q3180572 wikiPageWikiLink Q8106932.
- Q3180572 wikiPageWikiLink Q853067.
- Q3180572 dateOfBirth "1622".
- Q3180572 dateOfDeath "1676".
- Q3180572 name "Rahn, Johann".
- Q3180572 shortDescription "Swiss mathematician".
- Q3180572 type Person.
- Q3180572 type Agent.
- Q3180572 type Person.
- Q3180572 type Agent.
- Q3180572 type NaturalPerson.
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- Q3180572 type Q215627.
- Q3180572 type Q5.
- Q3180572 type Person.
- Q3180572 comment "Johann Rahn (Latinised form Rhonius) (1622–1676) was a (* 10 March 1622 Töss (Winterthur), † 25 May 1676 in Zurich) Swiss mathematician who is credited with the first use of the division symbol, ÷ (obelus) and the therefore sign, ∴. He is known for his Teutsche algebra, the first time the Geteiltzeichen characters appear in print. The symbol is used in Teutsche Algebra, published in 1659.".
- Q3180572 label "Johann Rahn".
- Q3180572 givenName "Johann".
- Q3180572 name "Johann Rahn".
- Q3180572 name "Rahn, Johann".
- Q3180572 surname "Rahn".