|≈||approximately equal to|
|digits||indicates that digits repeat infinitely (e.g. 8.294 369 corresponds to 8.294 369 369 369 369 …)|
The pound or pound-mass is a unit of mass used in the imperial, United States customary and other systems of measurement.
The short hundredweight or cental of 100 lb (45.359237 kg) is used in the US and Canada.