Since a Static Reduction requires several inversion steps it is an expensive matrix operation and is prone to some error in the solution.
From the en.wikipedia.org
In this environment, software language for the matrix operation must convey concise statements of high-level commands in order to be universally distributed.
From the en.wikipedia.org
These might be the memory of an uncle's inappropriate affection, one's color blindness, one's sense of the social matrix in operation at the office in which one works, and so forth.
From the en.wikipedia.org
The variable for this column is now a basic variable, replacing the variable which corresponded to the r-th column of the identity matrix before the operation.