Squerr ruit

Frae Wikipedia, the free beuk o knawledge
Jump to navigation Jump to search
The mathematical expression "The (principal) squerr ruit o x"

In mathematics, a squerr ruit o a nummer a is a nummer y such that y2 = a, in ither words, a nummer y whase squerr (the result o multiplyin the nummer bi itsel, or y × y) is a.[1] For example, 4 an −4 are squerr ruits o 16 acause 42 = (−4)2 = 16.

References[eedit | eedit soorce]

  1. Gel'fand, p. 120