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

@@ -25,10 +25,11 @@ in NIRVANA:
 **(I)** User interfaces which demand to add or modify code. These are
 recognized by files ending on `User.c`:
 
--   `configUser.c` -- definition of IC
+-   `configUser.c` -- definition of initial conditions (IC)
 
 -   `bcrhoUser.c`,`bcmUser.c`,`bceUser.c`,`bcetUser.c`,
-    `bcbUser.c`,`bcnXUser.c`,`bcCUser.c`,`bctfUser.c` -- user-defined BC
+    `bcbUser.c`,`bcnXUser.c`,`bcCUser.c`,`bctfUser.c` -- user-defined 
+    boundary conditions (BC)
 
 -   `viscosityCoeffUser.c`,`conductionCoeffUser.c`,`diffusionCoeffUser.c`
     -- user-defined dissipation coefficients for fluid viscosity,
@@ -495,7 +496,7 @@ possible values or a numeric range.
             numerical technique (equiv. to genuinely 2D-HLL in the
             current implementation).
 
-    -   `_C.mhd_courant` (typical value: $\le 0.5$): CFL number in the
+    -   `_C.mhd_courant` (typical value: $<0.5$): CFL number in the
         MHD timestep.
 
 -   `02` (`_C.viscosity_solver`, `_C.viscosity_courant`)
@@ -533,7 +534,7 @@ possible values or a numeric range.
 
 -   `07` (`_C.reactions_max_changeX`, `_C.reactions_max_changeT`)
 
-    -   `_C.reactions_max_changeX` (typical value: $\le 0.1$): allowed
+    -   `_C.reactions_max_changeX` (typical value: $<0.1$): allowed
         maximal relative change of species number densities (or total
         number density) in the time integration of the chemo-thermal
         rate equations.
@@ -544,7 +545,7 @@ possible values or a numeric range.
         number density (`SXN`=1 uses individual number densities;
         `SXN`=0 uses the total number density).
 
-    -   `_C.reactions_max_changeT` (typical value: $\le 0.1$): allowed
+    -   `_C.reactions_max_changeT` (typical value: $<0.1$): allowed
         maximal relative change in the temperature in the time
         integration of the chemo-thermal rate equations.
 
@@ -581,7 +582,7 @@ possible values or a numeric range.
         \mathtt{V}\cdot\mathtt{m}^{-1}\cdot\mathtt{A}^{-1}\cdot\mathtt{s}^{-1}$).
 
         **Important:** The Gaussian unit system can be mimicked by
-        choosing a value $\mathtt{\_C.permeability\_rel}=10^7$ so that
+        choosing a value ${\tt \_C.permeability\_rel}=10^7$ so that
         the magnetic permeability is $\mu=4\pi$.
 
 -   `02` (`_C.viscosity`, `_C.viscosity_coeff`)