Johannes Widmann

Johannes Widmann was a German mathematician. The + and - symbols first appeared in print in his book Mercantile Arithmetic or Behende und hüpsche Rechenung auff allen Kauffmanschafft published in Leipzig in 1489 in reference to surpluses and deficits in business problems.

Summary from Wikipedia (CC BY-SA 4.0) · Dates from Wikidata (CC0)

Who was born first?

• Johannes Widmann and Johannes Trithemius were born the same year
• Johannes Widmann was born 2 years after Thomas Linacre
• Johannes Widmann was born 3 years before Scipione del Ferro
• Johannes Widmann was born 3 years after Conrad Celtes
• Johannes Widmann was born 6 years before Johannes Werner

Timeline

1. Conrad CeltesFebruary 1, 1459 – February 4, 1508
2. Thomas Linacre1460 – October 20, 1524
3. Johannes TrithemiusFebruary 1, 1462 – December 13, 1516
4. Johannes Widmann (this page)circa 1462 – circa 1505
5. Scipione del FerroFebruary 6, 1465 – November 5, 1526
6. Johannes WernerFebruary 14, 1468 – May 1522

Related

• Isaac NewtonDecember 25, 1642 – March 20, 1727
• Johann Wolfgang von GoetheAugust 28, 1749 – March 22, 1832
• Immanuel KantApril 22, 1724 – February 12, 1804
• René DescartesMarch 31, 1596 – February 11, 1650
• Marie CurieNovember 7, 1867 – July 4, 1934
• Nicolaus CopernicusFebruary 19, 1473 – May 24, 1543
• Louis PasteurDecember 27, 1822 – September 28, 1895
• Gottfried Wilhelm LeibnizJune 21, 1646 – November 14, 1716