--- a/LMathLib.def
+++ b/LMathLib.def
@@ -93,12 +93,14 @@
           (* groessere ganze Zahl aufgerundet. Entspricht Rundung gegen     *)
           (* Plus Unendlich (Aufrundungsfunktion).                          *)
           (*                                                                *)
-          (* Returns the least integer greater than or equal to X.          *)
+          (* Returns the least integer greater than or equal to X, that is  *)
+          (* it return the smallest integral value that is not less than x  *)
           (*                                                                *)
           (* Beispiele / examples:                                          *)
           (*                                                                *)
           (*   ceil(-1.5) = -1.0, ceil(1.5) = 2.0                           *)
           (*   ceil(-1.0) = -1.0, ceil(1.0) = 1.0                           *)
+          (*                                                                *)
           (*----------------------------------------------------------------*)
 
 PROCEDURE entier(X : LONGREAL) : INTEGER;
@@ -124,6 +126,8 @@
           (* This function is equal to the entier function defined in the   *)
           (* "Revised report on the algorithmic language Algol 60",         *)
           (* sec. 3.2.5.                                                    *)
+          (*                                                                *)
+          (* Equivalent to LongMath.round                                   *)
           (*----------------------------------------------------------------*)
 
 PROCEDURE CardPot(x : LONGREAL;