diff --git a/PARAM_DEF/cce_mepa_pa_E0.xml b/PARAM_DEF/cce_mepa_pa_E0.xml
index 871bdb1..3160578 100644
--- a/PARAM_DEF/cce_mepa_pa_E0.xml
+++ b/PARAM_DEF/cce_mepa_pa_E0.xml
@@ -5,7 +5,7 @@
         <baseParam name='nFlux_E0'/>
     </vi>
   </get>
-  <process>10^$cce_mepa_pa_nFlux_E0</process>
+  <process>pow(10,$cce_mepa_pa_nFlux_E0)</process>
   <output/>
   </param>
 
diff --git a/PARAM_DEF/cce_mepa_pa_E1.xml b/PARAM_DEF/cce_mepa_pa_E1.xml
index 7f1546e..090f03e 100644
--- a/PARAM_DEF/cce_mepa_pa_E1.xml
+++ b/PARAM_DEF/cce_mepa_pa_E1.xml
@@ -5,7 +5,7 @@
         <baseParam name='nFlux_E1'/>
     </vi>
   </get>
-  <process>10^$cce_mepa_pa_nFlux_E1</process>
+  <process>pow(10,$cce_mepa_pa_nFlux_E1)</process>
   <output/>
   </param>
 
diff --git a/PARAM_DEF/cce_mepa_pa_E2.xml b/PARAM_DEF/cce_mepa_pa_E2.xml
index 2da460f..9c51084 100644
--- a/PARAM_DEF/cce_mepa_pa_E2.xml
+++ b/PARAM_DEF/cce_mepa_pa_E2.xml
@@ -5,7 +5,7 @@
         <baseParam name='nFlux_E2'/>
     </vi>
   </get>
-  <process>10^$cce_mepa_pa_nFlux_E2</process>
+  <process>pow(10,$cce_mepa_pa_nFlux_E2)</process>
   <output/>
   </param>
 
diff --git a/PARAM_DEF/cce_mepa_pa_E3.xml b/PARAM_DEF/cce_mepa_pa_E3.xml
index 1916327..fed80b2 100644
--- a/PARAM_DEF/cce_mepa_pa_E3.xml
+++ b/PARAM_DEF/cce_mepa_pa_E3.xml
@@ -5,7 +5,7 @@
         <baseParam name='nFlux_E3'/>
     </vi>
   </get>
-  <process>10^$cce_mepa_pa_nFlux_E3</process>
+  <process>pow(10,$cce_mepa_pa_nFlux_E3)</process>
   <output/>
   </param>
 
diff --git a/PARAM_DEF/cce_mepa_pa_E4.xml b/PARAM_DEF/cce_mepa_pa_E4.xml
index 6105e76..f5b501c 100644
--- a/PARAM_DEF/cce_mepa_pa_E4.xml
+++ b/PARAM_DEF/cce_mepa_pa_E4.xml
@@ -5,7 +5,7 @@
         <baseParam name='nFlux_E4'/>
     </vi>
   </get>
-  <process>10^$cce_mepa_pa_nFlux_E4</process>
+  <process>pow(10,$cce_mepa_pa_nFlux_E4)</process>
   <output/>
   </param>
 
diff --git a/PARAM_DEF/cce_mepa_pa_para.xml b/PARAM_DEF/cce_mepa_pa_para.xml
index 9439133..b82b635 100644
--- a/PARAM_DEF/cce_mepa_pa_para.xml
+++ b/PARAM_DEF/cce_mepa_pa_para.xml
@@ -11,7 +11,7 @@
     </vi>
     <amdaParam name='cce_mepa_pa_energy'/>
   </get>
-  <process>10^$cce_mepa_pa_nFlux_para</process>
+  <process>pow(10,$cce_mepa_pa_nFlux_para)</process>
   <output>
     <plot>
       <timePlot>
diff --git a/PARAM_DEF/cce_mepa_pa_perp.xml b/PARAM_DEF/cce_mepa_pa_perp.xml
index b3f25b7..60c0625 100644
--- a/PARAM_DEF/cce_mepa_pa_perp.xml
+++ b/PARAM_DEF/cce_mepa_pa_perp.xml
@@ -11,7 +11,7 @@
     </vi>
     <amdaParam name='cce_mepa_pa_energy'/>
   </get>
-  <process>10^$cce_mepa_pa_nFlux_perp</process>
+  <process>pow(10,$cce_mepa_pa_nFlux_perp)</process>
   <output>
     <plot>
       <timePlot>
--
libgit2 0.21.2