Assertion: symbol | /r/HasProperty | small raised zero
Facets:
Source sentences:
text: The first known recorded modern use of the degree symbol in mathematics is from 1657 where the usage seems to show that the symbol is a small raised zero, to match the prime symbol notation of sexagesimal subdivisions of degree such as minute ′, second ″, and third ‴, which originate as small raised Roman numerals.[citation needed]