|
|
|
|
|
|
Symbol | Definition |
---|---|
≡ | exactly equal |
≈ | approximately equal to |
= | equal to |
digits | indicates that digits repeat infinitely (e.g. 8.294 369 corresponds to 8.294 369 369 369 369 …) |
A zeptobarn (symbol: zb) is a unit of area equal to 10−49 m2.
A rood /ˈruːd/ is an historic English and international inch-pound measure of area, as well as an archaic English measure of length.