diff --git a/help/cbot/E/acos.txt b/help/cbot/E/acos.txt
index 46a5cd70..532471ff 100644
--- a/help/cbot/E/acos.txt
+++ b/help/cbot/E/acos.txt
@@ -6,7 +6,7 @@ Syntax:
 Number between -1 and 1 (including both).
 
 \t;Return value: \c;\l;float\u cbot\float;\n;
-Arcus cosine of the value.
+Arcus cosine (in degrees) of the value.
 
 \t;See also
 \l;Programming\u cbot;, \l;types\u cbot\type; and \l;expressions\u cbot\expr;.
diff --git a/help/cbot/E/asin.txt b/help/cbot/E/asin.txt
index 86d26b6d..0f2fc7e7 100644
--- a/help/cbot/E/asin.txt
+++ b/help/cbot/E/asin.txt
@@ -6,7 +6,7 @@ Syntax:
 Number between -1 and 1 (including both).
 
 \t;Return value: \c;\l;float\u cbot\float;\n;
-Arcus sine of the value.
+Arcus sine (in degrees) of the value.
 
 \t;See also
 \l;Programming\u cbot;, \l;types\u cbot\type; and \l;expressions\u cbot\expr;.
diff --git a/help/cbot/E/atan.txt b/help/cbot/E/atan.txt
index 45eb5d5f..d9585797 100644
--- a/help/cbot/E/atan.txt
+++ b/help/cbot/E/atan.txt
@@ -6,7 +6,7 @@ Syntax:
 Number.
 
 \t;Return value: \c;\l;float\u cbot\float;\n;
-Arcus tangent of the value.
+Arcus tangent (in degrees) of the value.
 
 \t;See also
 \l;Programming\u cbot;, \l;types\u cbot\type; and \l;expressions\u cbot\expr;.
diff --git a/help/cbot/po/cbot.pot b/help/cbot/po/cbot.pot
index cd8238c4..250adfd0 100644
--- a/help/cbot/po/cbot.pot
+++ b/help/cbot/po/cbot.pot
@@ -5627,12 +5627,6 @@ msgstr ""
 msgid "Number between -1 and 1 (including both)."
 msgstr ""
 
-#. type: Plain text
-#: ../E/acos.txt:9
-#, no-wrap
-msgid "Arcus cosine of the value."
-msgstr ""
-
 #. type: \b; header
 #: ../E/asin.txt:1
 #, no-wrap
@@ -5645,12 +5639,6 @@ msgstr ""
 msgid "<c/>asin ( value );<n/>"
 msgstr ""
 
-#. type: Plain text
-#: ../E/asin.txt:9
-#, no-wrap
-msgid "Arcus sine of the value."
-msgstr ""
-
 #. type: \b; header
 #: ../E/atan.txt:1
 #, no-wrap
@@ -5669,12 +5657,6 @@ msgstr ""
 msgid "Number."
 msgstr ""
 
-#. type: Plain text
-#: ../E/atan.txt:9
-#, no-wrap
-msgid "Arcus tangent of the value."
-msgstr ""
-
 #. type: \b; header
 #: ../E/cos.txt:1
 #, no-wrap
@@ -5688,7 +5670,7 @@ msgid "<c/>cos ( angle );<n/>"
 msgstr ""
 
 #. type: Plain text
-#: ../E/cos.txt:6 ../E/sin.txt:6 ../E/tan.txt:6
+#: ../E/cos.txt:6 ../E/sin.txt:6
 #, no-wrap
 msgid "Angle in degrees."
 msgstr ""
@@ -5789,6 +5771,39 @@ msgstr ""
 msgid "Tangent of the angle."
 msgstr ""
 
+#. type: Plain text
+#: ../E/acos.txt:9
+#, no-wrap
+msgid "Arcus cosine (in degrees) of the value."
+msgstr ""
+
+#. type: Plain text
+#: ../E/asin.txt:9
+#, no-wrap
+msgid "Arcus sine (in degrees) of the value."
+msgstr ""
+
+#. type: Plain text
+#: ../E/atan.txt:9
+#, no-wrap
+msgid "Arcus tangent (in degrees) of the value."
+msgstr ""
+
+#. type: Plain text
+#: ../E/tan.txt:6
+#, no-wrap
+msgid "Angle in degrees (except multiples of 90)."
+msgstr ""
+
+#~ msgid "Arcus cosine of the value."
+#~ msgstr ""
+
+#~ msgid "Arcus sine of the value."
+#~ msgstr ""
+
+#~ msgid "Arcus tangent of the value."
+#~ msgstr ""
+
 #~ msgid "Here is a list of mathematical functions: "
 #~ msgstr ""
 
diff --git a/help/cbot/po/de.po b/help/cbot/po/de.po
index 9042a6df..619f77f8 100644
--- a/help/cbot/po/de.po
+++ b/help/cbot/po/de.po
@@ -6516,12 +6516,6 @@ msgstr ""
 msgid "Number between -1 and 1 (including both)."
 msgstr ""
 
-#. type: Plain text
-#: ../E/acos.txt:9
-#, no-wrap
-msgid "Arcus cosine of the value."
-msgstr ""
-
 #. type: \b; header
 #: ../E/asin.txt:1
 #, no-wrap
@@ -6534,12 +6528,6 @@ msgstr ""
 msgid "<c/>asin ( value );<n/>"
 msgstr ""
 
-#. type: Plain text
-#: ../E/asin.txt:9
-#, no-wrap
-msgid "Arcus sine of the value."
-msgstr ""
-
 #. type: \b; header
 #: ../E/atan.txt:1
 #, no-wrap
@@ -6558,12 +6546,6 @@ msgstr ""
 msgid "Number."
 msgstr ""
 
-#. type: Plain text
-#: ../E/atan.txt:9
-#, no-wrap
-msgid "Arcus tangent of the value."
-msgstr ""
-
 #. type: \b; header
 #: ../E/cos.txt:1
 #, no-wrap
@@ -6577,7 +6559,7 @@ msgid "<c/>cos ( angle );<n/>"
 msgstr ""
 
 #. type: Plain text
-#: ../E/cos.txt:6 ../E/sin.txt:6 ../E/tan.txt:6
+#: ../E/cos.txt:6 ../E/sin.txt:6
 #, no-wrap
 msgid "Angle in degrees."
 msgstr ""
@@ -6678,6 +6660,39 @@ msgstr ""
 msgid "Tangent of the angle."
 msgstr ""
 
+#. type: Plain text
+#: ../E/acos.txt:9
+#, no-wrap
+msgid "Arcus cosine (in degrees) of the value."
+msgstr ""
+
+#. type: Plain text
+#: ../E/asin.txt:9
+#, no-wrap
+msgid "Arcus sine (in degrees) of the value."
+msgstr ""
+
+#. type: Plain text
+#: ../E/atan.txt:9
+#, no-wrap
+msgid "Arcus tangent (in degrees) of the value."
+msgstr ""
+
+#. type: Plain text
+#: ../E/tan.txt:6
+#, no-wrap
+msgid "Angle in degrees (except multiples of 90)."
+msgstr ""
+
+#~ msgid "Arcus cosine of the value."
+#~ msgstr ""
+
+#~ msgid "Arcus sine of the value."
+#~ msgstr ""
+
+#~ msgid "Arcus tangent of the value."
+#~ msgstr ""
+
 #~ msgid "Here is a list of mathematical functions: "
 #~ msgstr "Hier ist eine Liste der mathematischen Funktionen, die Ihnen zur Verfügung stehen:"
 
diff --git a/help/cbot/po/fr.po b/help/cbot/po/fr.po
index 83c97a25..c9464e61 100644
--- a/help/cbot/po/fr.po
+++ b/help/cbot/po/fr.po
@@ -6472,12 +6472,6 @@ msgstr ""
 msgid "Number between -1 and 1 (including both)."
 msgstr ""
 
-#. type: Plain text
-#: ../E/acos.txt:9
-#, no-wrap
-msgid "Arcus cosine of the value."
-msgstr ""
-
 #. type: \b; header
 #: ../E/asin.txt:1
 #, no-wrap
@@ -6490,12 +6484,6 @@ msgstr ""
 msgid "<c/>asin ( value );<n/>"
 msgstr ""
 
-#. type: Plain text
-#: ../E/asin.txt:9
-#, no-wrap
-msgid "Arcus sine of the value."
-msgstr ""
-
 #. type: \b; header
 #: ../E/atan.txt:1
 #, no-wrap
@@ -6514,12 +6502,6 @@ msgstr ""
 msgid "Number."
 msgstr ""
 
-#. type: Plain text
-#: ../E/atan.txt:9
-#, no-wrap
-msgid "Arcus tangent of the value."
-msgstr ""
-
 #. type: \b; header
 #: ../E/cos.txt:1
 #, no-wrap
@@ -6533,7 +6515,7 @@ msgid "<c/>cos ( angle );<n/>"
 msgstr ""
 
 #. type: Plain text
-#: ../E/cos.txt:6 ../E/sin.txt:6 ../E/tan.txt:6
+#: ../E/cos.txt:6 ../E/sin.txt:6
 #, no-wrap
 msgid "Angle in degrees."
 msgstr ""
@@ -6634,6 +6616,39 @@ msgstr ""
 msgid "Tangent of the angle."
 msgstr ""
 
+#. type: Plain text
+#: ../E/acos.txt:9
+#, no-wrap
+msgid "Arcus cosine (in degrees) of the value."
+msgstr ""
+
+#. type: Plain text
+#: ../E/asin.txt:9
+#, no-wrap
+msgid "Arcus sine (in degrees) of the value."
+msgstr ""
+
+#. type: Plain text
+#: ../E/atan.txt:9
+#, no-wrap
+msgid "Arcus tangent (in degrees) of the value."
+msgstr ""
+
+#. type: Plain text
+#: ../E/tan.txt:6
+#, no-wrap
+msgid "Angle in degrees (except multiples of 90)."
+msgstr ""
+
+#~ msgid "Arcus cosine of the value."
+#~ msgstr ""
+
+#~ msgid "Arcus sine of the value."
+#~ msgstr ""
+
+#~ msgid "Arcus tangent of the value."
+#~ msgstr ""
+
 #~ msgid "Here is a list of mathematical functions: "
 #~ msgstr "Les fonctions mathématiques suivantes sont disponibles:"
 
diff --git a/help/cbot/po/pl.po b/help/cbot/po/pl.po
index d8f95ac2..79a715d2 100644
--- a/help/cbot/po/pl.po
+++ b/help/cbot/po/pl.po
@@ -6522,12 +6522,6 @@ msgstr ""
 msgid "Number between -1 and 1 (including both)."
 msgstr ""
 
-#. type: Plain text
-#: ../E/acos.txt:9
-#, no-wrap
-msgid "Arcus cosine of the value."
-msgstr ""
-
 #. type: \b; header
 #: ../E/asin.txt:1
 #, no-wrap
@@ -6540,12 +6534,6 @@ msgstr ""
 msgid "<c/>asin ( value );<n/>"
 msgstr ""
 
-#. type: Plain text
-#: ../E/asin.txt:9
-#, no-wrap
-msgid "Arcus sine of the value."
-msgstr ""
-
 #. type: \b; header
 #: ../E/atan.txt:1
 #, no-wrap
@@ -6564,12 +6552,6 @@ msgstr ""
 msgid "Number."
 msgstr ""
 
-#. type: Plain text
-#: ../E/atan.txt:9
-#, no-wrap
-msgid "Arcus tangent of the value."
-msgstr ""
-
 #. type: \b; header
 #: ../E/cos.txt:1
 #, no-wrap
@@ -6583,7 +6565,7 @@ msgid "<c/>cos ( angle );<n/>"
 msgstr ""
 
 #. type: Plain text
-#: ../E/cos.txt:6 ../E/sin.txt:6 ../E/tan.txt:6
+#: ../E/cos.txt:6 ../E/sin.txt:6
 #, no-wrap
 msgid "Angle in degrees."
 msgstr ""
@@ -6684,6 +6666,39 @@ msgstr ""
 msgid "Tangent of the angle."
 msgstr ""
 
+#. type: Plain text
+#: ../E/acos.txt:9
+#, no-wrap
+msgid "Arcus cosine (in degrees) of the value."
+msgstr ""
+
+#. type: Plain text
+#: ../E/asin.txt:9
+#, no-wrap
+msgid "Arcus sine (in degrees) of the value."
+msgstr ""
+
+#. type: Plain text
+#: ../E/atan.txt:9
+#, no-wrap
+msgid "Arcus tangent (in degrees) of the value."
+msgstr ""
+
+#. type: Plain text
+#: ../E/tan.txt:6
+#, no-wrap
+msgid "Angle in degrees (except multiples of 90)."
+msgstr ""
+
+#~ msgid "Arcus cosine of the value."
+#~ msgstr ""
+
+#~ msgid "Arcus sine of the value."
+#~ msgstr ""
+
+#~ msgid "Arcus tangent of the value."
+#~ msgstr ""
+
 #~ msgid "Here is a list of mathematical functions: "
 #~ msgstr "Oto lista funkcji matematycznych: "
 
diff --git a/help/cbot/po/ru.po b/help/cbot/po/ru.po
index dcab9420..4c136c48 100644
--- a/help/cbot/po/ru.po
+++ b/help/cbot/po/ru.po
@@ -6484,12 +6484,6 @@ msgstr ""
 msgid "Number between -1 and 1 (including both)."
 msgstr ""
 
-#. type: Plain text
-#: ../E/acos.txt:9
-#, no-wrap
-msgid "Arcus cosine of the value."
-msgstr ""
-
 #. type: \b; header
 #: ../E/asin.txt:1
 #, no-wrap
@@ -6502,12 +6496,6 @@ msgstr ""
 msgid "<c/>asin ( value );<n/>"
 msgstr ""
 
-#. type: Plain text
-#: ../E/asin.txt:9
-#, no-wrap
-msgid "Arcus sine of the value."
-msgstr ""
-
 #. type: \b; header
 #: ../E/atan.txt:1
 #, no-wrap
@@ -6526,12 +6514,6 @@ msgstr ""
 msgid "Number."
 msgstr ""
 
-#. type: Plain text
-#: ../E/atan.txt:9
-#, no-wrap
-msgid "Arcus tangent of the value."
-msgstr ""
-
 #. type: \b; header
 #: ../E/cos.txt:1
 #, no-wrap
@@ -6545,7 +6527,7 @@ msgid "<c/>cos ( angle );<n/>"
 msgstr ""
 
 #. type: Plain text
-#: ../E/cos.txt:6 ../E/sin.txt:6 ../E/tan.txt:6
+#: ../E/cos.txt:6 ../E/sin.txt:6
 #, no-wrap
 msgid "Angle in degrees."
 msgstr ""
@@ -6646,6 +6628,39 @@ msgstr ""
 msgid "Tangent of the angle."
 msgstr ""
 
+#. type: Plain text
+#: ../E/acos.txt:9
+#, no-wrap
+msgid "Arcus cosine (in degrees) of the value."
+msgstr ""
+
+#. type: Plain text
+#: ../E/asin.txt:9
+#, no-wrap
+msgid "Arcus sine (in degrees) of the value."
+msgstr ""
+
+#. type: Plain text
+#: ../E/atan.txt:9
+#, no-wrap
+msgid "Arcus tangent (in degrees) of the value."
+msgstr ""
+
+#. type: Plain text
+#: ../E/tan.txt:6
+#, no-wrap
+msgid "Angle in degrees (except multiples of 90)."
+msgstr ""
+
+#~ msgid "Arcus cosine of the value."
+#~ msgstr ""
+
+#~ msgid "Arcus sine of the value."
+#~ msgstr ""
+
+#~ msgid "Arcus tangent of the value."
+#~ msgstr ""
+
 #~ msgid "Here is a list of mathematical functions: "
 #~ msgstr "Ниже приведет список математических функций:"