sympy/sympy — Issue #981: sympy.physics.units.amu defined wrong
Author: nfpw
Created: 2012-01-15 13:05:29+00:00
State: open

Should be defined as kg instead.

see also:
http://code.google.com/p/sympy/issues/detail?id=1722
http://goldbook.iupac.org/U06554.html