in: three dimensions
is: the property that enables the point to be located by means of an appropriate set of position coordinates, or by an appropriate position vector relative to a coordinate system. [M4.1]
is also used to refer: to the position coordinates or the position vector, as in a particle at position
or at position
can be specified: in linear motion by a single coordinate such as
and this is then referred to as 'the position'. [M4.1, M5.1]
Copyright 1997, The Open University