Error Propagation Definition/Meaning:
A term that refers to the way in which, at a given stage of a calculation,
part of the error arises out of the error at a previous stage. This is
independent of the further roundoff
errors inevitably introduced between the two stages. Unfavorable error
propagation can seriously affect the results of a calculation. The investigation
of error propagation in simple arithmetical operations is used as the basis for
the detailed analysis of more extensive calculations. The way in which
uncertainties in the data propagate into the final results of a calculation can
be assessed in practice by repeating the calculation with slightly perturbed
data.
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