OBSOLETE UNITS PACKAGE SYMBOL
As of Version 9.0, unit functionality is built into the Wolfram Language
is a unit of luminance (photometric brightness).
- To use , you first need to load the Units Package using Needs["Units`"].
- is equivalent to Candela/(Meter2 Pi) (SI units).
- is equivalent to 10-4 Lambert.
- Convert[n Apostilb,newunits] converts n Apostilb to a form involving units newunits.
- is typically abbreviated as asb.