3-NIRVANA-user-guide/3.2-User-interfaces.md

@@ -415,8 +415,9 @@ possible values or a numeric range.
         Jeans-length-based mesh refinement criterion allowing a
         systematic reduction of the Jeans threshold with increasing
         $y=10^{-7}$
-        refinement level $l$ according to the expression `_C.amr_Jeans`$-l*$
-        `_C.amr_dJeans`, i.e., the local Jeans length becomes
+        refinement level $l$ according to the expression 
+        $\mathtt{_C.amr_Jeans}-l*\mathtt{_C.amr_dJeans}$, i.e., the local 
+        Jeans length becomes
         gradually higher resolved with incresing $l$. `_C.amr_dJeans`
         must be positiv.
         $y=10^{-7}$