Adam Ries (often also Adam Riese; * 1492 or 1493 in Staffelstein, Fürstbistum Bamberg, † March 30 or April 2, 1559 probably in Annaberg or Wiesa) was a German arithmetic master. He became known for his textbook Invoice on the Lines and Feathers, which was published at least 120 times until the 17th century. It is noteworthy that Adam Ries wrote his works not - as was customary at the time - in Latin, but in German. In this way he reached a large readership and was also able to contribute to the standardization of the German language.
Adam Ries (often also Adam Riese; * 1492 or 1493 in Staffelstein, Prince-Bishopric of Bamberg; † March 30 or April 2, 1559, probably in Annaberg or Wiesa) was a German arithmetic master. He became known for his textbook "Rechnung auf der Linihen und Federn", which was published at least 120 times by the 17th century. It is noteworthy that Adam Ries wrote his works not in Latin, as was usual at the time, but in German. As a result, he reached a large circle of readers and was also able to contribute to the standardization of the German language.