--- a/LongFloat.st	Mon Jul 03 16:00:57 2017 +0200
+++ b/LongFloat.st	Mon Jul 03 16:01:03 2017 +0200
@@ -1409,6 +1409,7 @@
 
     "
      an invalid value for logarithm
+     if you need -INF for a zero receiver, try Number trapInfinity:[...]
     "
     ^ self class
         raise:(self = 0 ifTrue:[#infiniteResultSignal] ifFalse:[#domainErrorSignal])
@@ -1417,7 +1418,7 @@
         arguments:#()
         errorString:'bad receiver in ln (not strictly positive)'
 
-    "Modified: / 03-07-2017 / 15:48:56 / cg"
+    "Modified (comment): / 03-07-2017 / 15:57:57 / cg"
 !
 
 log10
@@ -1461,6 +1462,7 @@
 
     "
      an invalid value for logarithm
+     if you need -INF for a zero receiver, try Number trapInfinity:[...]
     "
     ^ self class
         raise:(self = 0 ifTrue:[#infiniteResultSignal] ifFalse:[#domainErrorSignal])
@@ -1469,7 +1471,7 @@
         arguments:#()
         errorString:'bad receiver in log10 (not strictly positive)'
 
-    "Modified: / 03-07-2017 / 15:49:01 / cg"
+    "Modified (comment): / 03-07-2017 / 15:58:06 / cg"
 !
 
 raisedTo:aNumber