bm => boldsymbol

delta-robot.org

@@ -213,8 +213,8 @@ There are three actuators in the following directions $\hat{s}_1$, $\hat{s}_2$ a
 \end{equation}
 
 \begin{equation}
-\bm{J} = \begin{bmatrix}
-\hat{\bm{s}}_1^T \\ \hat{\bm{s}}_2^T \\ \hat{\bm{s}}_3^T
+\boldsymbol{J} = \begin{bmatrix}
+\hat{\boldsymbol{s}}_1^T \\ \hat{\boldsymbol{s}}_2^T \\ \hat{\boldsymbol{s}}_3^T
 \end{bmatrix}
 \end{equation}