Until 1995, SI (International System of Units) supplementary units were:
| Quantity | Symbol | Name of SI supplementary unit | Symbol for SI unit
|
|---|
| angle | θ | radian | rad
|
| solid angle | Ω | steradian | sr
|
As of October 1995, the category of "supplementary units" has been abolished from the SI system of measurement, and the radian and the steradian are now considered SI derived units.
See also
Last updated: 10-20-2005 15:56:52
