diff --git a/doc/Eqs/fix_nh1.jpg b/doc/Eqs/fix_nh1.jpg
index a100650a57..929f97a8c6 100644
Binary files a/doc/Eqs/fix_nh1.jpg and b/doc/Eqs/fix_nh1.jpg differ
diff --git a/doc/Eqs/fix_nh1.tex b/doc/Eqs/fix_nh1.tex
index 457dfd117f..f6928495ce 100644
--- a/doc/Eqs/fix_nh1.tex
+++ b/doc/Eqs/fix_nh1.tex
@@ -12,27 +12,24 @@
 	{\ensuremath{{\rm i}}}
 
 
-$$
-\exp \left(\iu{} L \Delta t \right) =
+\begin{eqnarray*}
+\exp \left(\iu{} L \Delta t \right) &=&Ê
 \exp \left(\iu{} L_{\rm T\mhyphen baro} \frac{\Delta t}{2} \right)
 \exp \left(\iu{} L_{\rm T\mhyphen part} \frac{\Delta t}{2} \right)
 \exp \left(\iu{} L_{\epsilon , 2} \frac{\Delta t}{2} \right)
-\exp \left(\iu{} L_{2}^{(2)} \frac{\Delta t}{2} \right)
-$$
-$$
-\times \left[ 
+\exp \left(\iu{} L_{2}^{(2)} \frac{\Delta t}{2} \right) \\
+&&\times \left[ 
 \exp \left(\iu{} L_{2}^{(1)} \frac{\Delta t}{2n} \right)
 \exp \left(\iu{} L_{\epsilon , 1} \frac{\Delta t}{n} \right)
 \exp \left(\iu{} L_1 \frac{\Delta t}{n} \right)
 \exp \left(\iu{} L_{2}^{(1)} \frac{\Delta t}{2n} \right)
-\right]^n
-$$
-$$
+\right]^n \\
+&&\times
 \exp \left(\iu{} L_{2}^{(2)} \frac{\Delta t}{2} \right)
-\exp \left(\iu{} L_{\epsilon , 2} \frac{\Delta t}{2} \right)
-\exp \left(\iu{} L_{\rm T\mhyphen part} \frac{\Delta t}{2} \right)
-\exp \left(\iu{} L_{\rm T\mhyphen baro} \frac{\Delta t}{2} \right)
-+ \mathcal{O} \left(\Delta t^3 \right)
-$$
+\exp \left(\iu{} L_{\epsilon , 2} \frac{\Delta t}{2} \right) 
+\exp \left(\iu{} L_{\rm T\mhyphen part} \frac{\Delta t}{2} \right) 
+\exp \left(\iu{} L_{\rm T\mhyphen baro} \frac{\Delta t}{2} \right) \\
+&&+ \mathcal{O} \left(\Delta t^3 \right)
+\end{eqnarray*}
 
 \end{document}