the constancy of these forces forms constant absolute accelerations at the infinitesimal region of spacetime. These accelerations vanish when the metric is exactly zero. To make the metric zero, a quantity of

must be subtracted from

. The new expression is equivalent to the spacetime interval of Einstein's special theory of relativity.
but

and

is not identically zero. Two of the indices can be zero, (1,0,0), (0,1,0),(0,0,1). For n=0 and l=0 then
