Fix typo in the description of the MAC estimator

theory/Multipoles/fmm_mac.tex

@@ -184,7 +184,7 @@ f_{\rm MAC}(r) =
   \left(\frac{9}{5}\right)^2 H^{-2} & \mbox{if} & r <
   \frac{5}{9}H,\\
   r^{-2} & \mbox{if} & \frac{5}{9}H \leq r < \frac{5}{3}r_s, \\
-  \left(\frac{9}{5}\right)^2 r_s^{-2} r^{-4} & \mbox{if} & \frac{5}{3}r_s \leq r. \\
+  \left(\frac{3}{5}\right)^2 r_s^{-2} r^{-4} & \mbox{if} & \frac{5}{3}r_s \leq r. \\
 \end{array}
 \right.
 \label{eq:fmm:f_mac}