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Error analysis (mathematics)
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Error analysis (mathematics) : ウィキペディア英語版
Error analysis (mathematics)
In mathematics, error analysis is the study of kind and quantity of error, or uncertainty, that may be present in the solution to a problem. This issue is particularly prominent in applied areas such as numerical analysis and statistics.
== Error analysis in numerical modeling ==

In numerical simulation or modeling of real systems, error analysis is concerned with the changes in the output of the model as the parameters to the model vary about a mean.
For instance, in a system modeled as a function of two variables \scriptstyle z \,=\, f(x,y). Error analysis deals with the propagation of the numerical errors in \scriptstyle x and \scriptstyle y (around mean values \scriptstyle\bar and \scriptstyle\bar) to error in \scriptstyle z (around a mean \scriptstyle\bar).
In numerical analysis, error analysis comprises both forward error analysis and backward error analysis.

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