## Fitting linear combinations of exponentials to human uranium-excretion data |

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A's and a's appended errors Bethesda Brute-Force Method calculations cedure CN CN column vector combinations of exponentials Convergence set Data True Ordinate data were processed Data with Unit determined diagonal elements diagonal matrix distribution and excretion elementary symmetric functions equation of Eq Error of Parameter excretion data fitting linear combinations Health Physics Householder's Modified Prony initial estimates initial parameter estimates levels are biased levels of variance ln addition lnsert lnstitute method was coded Modified Prony Method N. M. Dismuke negative roots nine iterations number of exponentials o o o obtained Oracle ORNL orthogonalization procedure Parameter Parameter Value Parameter Value Standard plotted Poisson-distributed polynomial Prony's residual sum reverse order shown in Fig solved squares decreased sum of squares Synthetic Data True Taylor series ten-error levels three-error-level data True Ordinate Values true values UNCLASSIFIED ORNL-LR-DWG UNION CARBIDE unit weights uranium Value Standard Error variance level