sawsim/discussion.tex: Add caveat about unfolding range and mean/variance

diff --git a/src/sawsim/discussion.tex b/src/sawsim/discussion.tex
index ae438dfe943641402b2059879e8983501d176270..4c5ed5203a81fa7564eeee4367c775b3ff3b2860 100644 (file)
--- a/src/sawsim/discussion.tex
+++ b/src/sawsim/discussion.tex
@@ -710,7 +710,11 @@ which matches \cref{eq:sawsim:gumbel} except for a constant
 prefactor due to the range\footnote{
   The Gumbel distribution in \cref{eq:sawsim:gumbel} is normalized for
   the range $-\infty < F < \infty$, but \cref{eq:unfold:bell_pdf} is
-  normalized for the range $0 \le F < \infty$.
+  normalized for the range $0 \le F < \infty$.  This distinction will
+  alter the analytical mean and variance listed after
+  \cref{eq:sawsim:gumbel}, but with the experimental unfolding
+  histograms showing few zero-force unfolding events, the effective
+  difference will be negligable.
 }.
 %
 \nomenclature{$\alpha'$}{The mode unfolding force for a single folded