1 files changed, 2 insertions, 2 deletions
diff --git a/uniqueness.tex b/uniqueness.tex
index d3b4822..66f21a4 100644
--- a/uniqueness.tex
+++ b/uniqueness.tex
@@ -60,12 +60,12 @@ threshold, and \emph{unmatched} otherwise. Formally, let
 $(\bs_1,\bs_2)$ be an input pair of the algorithm
 ($\bs_i\in\mathbf{R}_+^{6}$, are the six bone measurements), the
 output of the algorithm for the threshold $\delta$ is defined as:
-\begin{displaymath}
+\begin{equation}
   A_\delta(\bs_1,\bs_2) = \begin{cases}
     1 & \text{if $d(\bs_1,\bs_2) < \delta$}\\
     0 & \text{otherwise}
   \end{cases}
-\end{displaymath}
+\end{equation}
 
 \begin{figure}[t]
   \begin{center}