where 
is an absolute temperature and 
is the corresponding Celsius temperature. [P7.2]
is: a nearly centigrade temperature scale which tracks the Kelvin temperature scale precisely. [P7.2]
is defined: in terms of the Kelvin temperature scale by where is an absolute temperature and is the corresponding Celsius temperature. [P7.2]
is named: after Anders Celsius (1701-1744). [P7.2]
Copyright 1997, The Open University