  In the former case, when equations are being “discretized” (the turning of equations that describe continuous rates of change into discrete equations), it should be emphasized that, although it is common to speak of simulations “solving” those equations, a discretization can at best only find something which approximates the solution of continuous equations, to some desired degree of accuracy. Finally, when speaking of “a computer simulation” in the narrowest sense, we should be speaking of a particular implementation of the algorithm on a particular digital computer, written in a particular language, using a particular compiler, etc. There are cases in which different results can be obtained as a result of variations in any of these particulars.