<div dir="ltr">ok, though I see that as accuracy in the first derivative more than inaccurate precision that mitigates the need for "ground truths." <br><br>Bob</div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, May 18, 2021 at 3:29 PM David Lang <<a href="mailto:david@lang.hm">david@lang.hm</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">precision without accuracy is having clocks that may differ from each other by a <br>
few seconds, but both count the same number of milliseconds for a duration.<br>
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<a href="https://wp.stolaf.edu/it/gis-precision-accuracy/" rel="noreferrer" target="_blank">https://wp.stolaf.edu/it/gis-precision-accuracy/</a><br>
<br>
David Lang<br>
<br>
</blockquote></div>
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