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/snip/ if one wants to verify or test for an exponential decay the time honored way is to plot the logarithm of the speed (or frequency) vs. time (or equivalently, make a semi-log-scaled graph). If the graph is adequately represented as a straight line then the decay is exponential, and the intercept gives the logarithm of the initial speed/frequency, while the negative of the slope gives the decay rate. /snip/Least squares straight line fit for a log plotted exponential unduly weights one end of the straight line I thought, so the time honored way subsides in dishonor??
David Bowman
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