4-CAIVS-user-guide/4.2-User-interfaces.md

@@ -377,7 +377,7 @@ following physical variables:
   `tfz[it][iz][iy][ix]`   $z$-component ${b_z}_\mathrm{t}$ of testfields fluctuations (if testfields)
   `p[iz][iy][ix]`         thermal pressure $p$
   `T[iz][iy][ix]`         temperature $T$
-  `et[iz][iy][ix]`        thermal energy density $\varepsilon$ (if dual energy mode)
+  `et[iz][iy][ix]`        thermal energy density $\epsilon$ (if dual energy mode)
   `ne[iz][iy][ix]`        electron number density $n_e$
 
   index   meaning                             range