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

@@ -1742,7 +1742,7 @@ coordinates of a testpoint (`x`,`y`,`z`):
 
 The user must return the mesh refinement level (`level`) with which the
 vicinity of the given testpoint should be resolved with the limitation
-\|`level`\| ≤ `_C.imr` where code paramter `_C.imr` is
+\|`level`\|≤`_C.imr` where code paramter `_C.imr` is
 the maximum allowed initial mesh refinement level specified by the user
 in the parameter interface `nirvana.par` under the category
 `MESH REFINEMENT`. In practice, the user defines spatial domains in
@@ -1804,7 +1804,7 @@ situation, in the testproblem `/nirvana/testproblems/GRAVITY/problem1`.
 User-specified refined domains are normally subject to subsequent
 derefinement according to the standard refinement criteria. However, if
 the returned refinement level is given a negative sign
-(`level` < 0) it tells the calling function that the
+(`level`<0) it tells the calling function that the
 user-specified domain should be regarded as statically refined. This
 implies that there is no subsequent derefinement of this domain during
 runtime.
@@ -1820,10 +1820,10 @@ Function arguments are the coordinates of a testpoint (`x`,`y`,`z`):
 
 The user must return the refinement control parameter `level`
 (initialized to 0) for the vicinity of the testpoint (`x`,`y`,`z`). A
-return value `level` = 0 has no effect on mesh refinement. A
-return value `level` =  − 1 prohibits mesh refinement. A return
+return value `level`=0 has no effect on mesh refinement. A
+return value `level`=−1 prohibits mesh refinement. A return
 value `level` > 0 forces mesh refinement up to refinement
-level `level` with the limitation `level` ≤ `_C.amr`
+level `level` with the limitation `level`≤`_C.amr`
 where code parameter `_C.amr` is the maximum allowed mesh refinement
 level specified by the user in the parameter interface `nirvana.par`
 under category `MESH REFINEMENT`. Like in the `initDomainUser.c`