uncertainty analysis error propagation equation Jie Zheng https://en.wikipedia.org/wiki/Propagation_of_uncertainty Jinjing Guo Equations aimed to assess how the quantified uncertainties in model inputs propagate in model calculations to produce and uncertainty range in a given model outcome of interest.In statistics, propagation of uncertainty (or propagation of error) is the effect of variables' uncertainties (or errors, more specifically random errors) on the uncertainty of a function based on them. When the variables are the values of experimental measurements they have uncertainties due to measurement limitations (e.g., instrument precision) which propagate due to the combination of variables in the function. Oliver He propagation of error propagation of uncertainty 误差传播方程