diff --git a/res/values-ca/strings.xml b/res/values-ca/strings.xml
index 502cc4a..03c5428 100644
--- a/res/values-ca/strings.xml
+++ b/res/values-ca/strings.xml
@@ -18,7 +18,7 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="8095131950334945205">"Calculadora"</string>
-    <string name="error_nan" msgid="4071578355972369426">"No és número"</string>
+    <string name="error_nan" msgid="4071578355972369426">"No és una xifra"</string>
     <string name="error_syntax" msgid="6940043994468390738">"Error"</string>
     <string name="fun_cos" msgid="7312559527731358211">"cos"</string>
     <string name="fun_ln" msgid="6282013842946532944">"ln"</string>
diff --git a/res/values-el/strings.xml b/res/values-el/strings.xml
index 4ef7326..f26176b 100644
--- a/res/values-el/strings.xml
+++ b/res/values-el/strings.xml
@@ -18,7 +18,7 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="8095131950334945205">"Αριθμομηχ."</string>
-    <string name="error_nan" msgid="4071578355972369426">"Όχι αριθμό"</string>
+    <string name="error_nan" msgid="4071578355972369426">"Μη αριθμός"</string>
     <string name="error_syntax" msgid="6940043994468390738">"Σφάλμα"</string>
     <string name="fun_cos" msgid="7312559527731358211">"cos"</string>
     <string name="fun_ln" msgid="6282013842946532944">"ln"</string>
diff --git a/res/values-es-rUS/strings.xml b/res/values-es-rUS/strings.xml
index 0d0e611..dc0d496 100644
--- a/res/values-es-rUS/strings.xml
+++ b/res/values-es-rUS/strings.xml
@@ -18,7 +18,7 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="8095131950334945205">"Calculadora"</string>
-    <string name="error_nan" msgid="4071578355972369426">"No es número."</string>
+    <string name="error_nan" msgid="4071578355972369426">"No es un número."</string>
     <string name="error_syntax" msgid="6940043994468390738">"Error"</string>
     <string name="fun_cos" msgid="7312559527731358211">"cos"</string>
     <string name="fun_ln" msgid="6282013842946532944">"ln"</string>
@@ -26,7 +26,7 @@
     <string name="fun_sin" msgid="7136698561875496766">"sen"</string>
     <string name="fun_tan" msgid="9116158377794370341">"tan"</string>
     <string name="clr" msgid="3126239559646368205">"be"</string>
-    <string name="del" msgid="6700172918709138470">"del"</string>
+    <string name="del" msgid="6700172918709138470">"CE"</string>
     <string name="desc_const_e" msgid="7752508267661034194">"número de Euler"</string>
     <string name="desc_const_pi" msgid="5843835548313660468">"pi"</string>
     <string name="desc_dec_point" msgid="6211527612960070934">"punto"</string>
diff --git a/res/values-es/strings.xml b/res/values-es/strings.xml
index d245636..bfe1d70 100644
--- a/res/values-es/strings.xml
+++ b/res/values-es/strings.xml
@@ -18,7 +18,7 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="8095131950334945205">"Calculadora"</string>
-    <string name="error_nan" msgid="4071578355972369426">"No es número"</string>
+    <string name="error_nan" msgid="4071578355972369426">"No es un número"</string>
     <string name="error_syntax" msgid="6940043994468390738">"Error"</string>
     <string name="fun_cos" msgid="7312559527731358211">"cos"</string>
     <string name="fun_ln" msgid="6282013842946532944">"ln"</string>
diff --git a/res/values-hi/strings.xml b/res/values-hi/strings.xml
index 4d354e9..d570dd7 100644
--- a/res/values-hi/strings.xml
+++ b/res/values-hi/strings.xml
@@ -26,7 +26,7 @@
     <string name="fun_sin" msgid="7136698561875496766">"sin"</string>
     <string name="fun_tan" msgid="9116158377794370341">"tan"</string>
     <string name="clr" msgid="3126239559646368205">"clr"</string>
-    <string name="del" msgid="6700172918709138470">"del"</string>
+    <string name="del" msgid="6700172918709138470">"CE"</string>
     <string name="desc_const_e" msgid="7752508267661034194">"यूलर की संख्या"</string>
     <string name="desc_const_pi" msgid="5843835548313660468">"पाई"</string>
     <string name="desc_dec_point" msgid="6211527612960070934">"दशमलव"</string>
diff --git a/res/values-kk-rKZ/strings.xml b/res/values-kk-rKZ/strings.xml
index f2eefa5..99eb76c 100644
--- a/res/values-kk-rKZ/strings.xml
+++ b/res/values-kk-rKZ/strings.xml
@@ -26,7 +26,7 @@
     <string name="fun_sin" msgid="7136698561875496766">"син"</string>
     <string name="fun_tan" msgid="9116158377794370341">"тан"</string>
     <string name="clr" msgid="3126239559646368205">"тзл"</string>
-    <string name="del" msgid="6700172918709138470">"жою"</string>
+    <string name="del" msgid="6700172918709138470">"del"</string>
     <string name="desc_const_e" msgid="7752508267661034194">"Эйлер саны"</string>
     <string name="desc_const_pi" msgid="5843835548313660468">"пи"</string>
     <string name="desc_dec_point" msgid="6211527612960070934">"нүкте"</string>
diff --git a/res/values-kn-rIN/strings.xml b/res/values-kn-rIN/strings.xml
index c6f8dad..30cbb3b 100644
--- a/res/values-kn-rIN/strings.xml
+++ b/res/values-kn-rIN/strings.xml
@@ -20,7 +20,7 @@
     <string name="app_name" msgid="8095131950334945205">"ಕ್ಯಾಲ್ಕುಲೇಟರ್"</string>
     <string name="error_nan" msgid="4071578355972369426">"ಸಂಖ್ಯೆಯಲ್ಲ"</string>
     <string name="error_syntax" msgid="6940043994468390738">"ದೋಷ"</string>
-    <string name="fun_cos" msgid="7312559527731358211">"ಕೊಸ್"</string>
+    <string name="fun_cos" msgid="7312559527731358211">"cos"</string>
     <string name="fun_ln" msgid="6282013842946532944">"ಇನ್"</string>
     <string name="fun_log" msgid="6856905045055937519">"ಲಾ."</string>
     <string name="fun_sin" msgid="7136698561875496766">"ಸೈನ್"</string>
diff --git a/res/values-ml-rIN/strings.xml b/res/values-ml-rIN/strings.xml
index eddde82..5a323e7 100644
--- a/res/values-ml-rIN/strings.xml
+++ b/res/values-ml-rIN/strings.xml
@@ -26,7 +26,7 @@
     <string name="fun_sin" msgid="7136698561875496766">"sine"</string>
     <string name="fun_tan" msgid="9116158377794370341">"tan"</string>
     <string name="clr" msgid="3126239559646368205">"മായ്‌ക്കുക"</string>
-    <string name="del" msgid="6700172918709138470">"ഇല്ലാതാക്കുക"</string>
+    <string name="del" msgid="6700172918709138470">"മായ്ക്കൂ"</string>
     <string name="desc_const_e" msgid="7752508267661034194">"യൂളറിന്റെ നമ്പർ"</string>
     <string name="desc_const_pi" msgid="5843835548313660468">"പൈ"</string>
     <string name="desc_dec_point" msgid="6211527612960070934">"പോയിന്റ്"</string>
diff --git a/res/values-sq-rAL/strings.xml b/res/values-sq-rAL/strings.xml
index 4ce212d..b277102 100644
--- a/res/values-sq-rAL/strings.xml
+++ b/res/values-sq-rAL/strings.xml
@@ -18,7 +18,7 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="8095131950334945205">"Makina llogaritëse"</string>
-    <string name="error_nan" msgid="4071578355972369426">"S\'është numër"</string>
+    <string name="error_nan" msgid="4071578355972369426">"s\'është numër"</string>
     <string name="error_syntax" msgid="6940043994468390738">"Gabim"</string>
     <string name="fun_cos" msgid="7312559527731358211">"kos"</string>
     <string name="fun_ln" msgid="6282013842946532944">"ln"</string>
diff --git a/res/values-uz-rUZ/strings.xml b/res/values-uz-rUZ/strings.xml
index 49364e4..a47890e 100644
--- a/res/values-uz-rUZ/strings.xml
+++ b/res/values-uz-rUZ/strings.xml
@@ -18,7 +18,7 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="8095131950334945205">"Kalkulator"</string>
-    <string name="error_nan" msgid="4071578355972369426">"Son emas"</string>
+    <string name="error_nan" msgid="4071578355972369426">"Haqiqiy son emas"</string>
     <string name="error_syntax" msgid="6940043994468390738">"Xato"</string>
     <string name="fun_cos" msgid="7312559527731358211">"cos"</string>
     <string name="fun_ln" msgid="6282013842946532944">"ln"</string>
diff --git a/res/values-zh-rCN/strings.xml b/res/values-zh-rCN/strings.xml
index fc342a2..38e7d70 100644
--- a/res/values-zh-rCN/strings.xml
+++ b/res/values-zh-rCN/strings.xml
@@ -26,7 +26,7 @@
     <string name="fun_sin" msgid="7136698561875496766">"sin"</string>
     <string name="fun_tan" msgid="9116158377794370341">"tan"</string>
     <string name="clr" msgid="3126239559646368205">"清除"</string>
-    <string name="del" msgid="6700172918709138470">"删除"</string>
+    <string name="del" msgid="6700172918709138470">"del"</string>
     <string name="desc_const_e" msgid="7752508267661034194">"欧拉数"</string>
     <string name="desc_const_pi" msgid="5843835548313660468">"圆周率"</string>
     <string name="desc_dec_point" msgid="6211527612960070934">"点"</string>