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.
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Academics from Germany 6
About this person
Country
GermanyCategory
Academics
Type
Academic
Status
deceased
Dates
Lived 1462 to 1505 · aged 43
Written about in
21 languages
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