diff --git a/README b/README
index e96f496..c25c054 100644
--- a/README
+++ b/README
@@ -35,17 +35,9 @@ Tested commands are tagged with * in column tested.
 
 category    command     new     impl.   tested
 
-GENERAL     +                   *
-GENERAL     -                   *
-GENERAL     neg                 *
-GENERAL     *                   *
-GENERAL     /                   *
-GENERAL     inv                 *
-GENERAL     %                   *
-GENERAL     %CH                 *
-GENERAL     ^                   *
-GENERAL     sqrt        *       *
-GENERAL     sq          *       *
+GENERAL     nop         *       *       *
+GENERAL     help/h/?    *       *
+GENERAL     quit/exit/q *       *
 GENERAL     test        *       *
 GENERAL     verbose     *       *
 GENERAL     std                 *
@@ -55,6 +47,19 @@ GENERAL     version     *       *
 GENERAL     uname       *       *
 GENERAL     edit                *
 
+REAL        +                   *
+REAL        -                   *
+REAL        neg                 *
+REAL        *                   *
+REAL        /                   *
+REAL        inv                 *
+REAL        %                   *
+REAL        %CH                 *
+REAL        ^                   *
+REAL        sqrt        *       *
+REAL        sq          *       *
+REAL        mod         *       *
+
 STACK       drop                *
 STACK       swap                *
 STACK       roll
diff --git a/src/rpn-cmd.h b/src/rpn-cmd.h
index 6c7c0b3..779a3c6 100644
--- a/src/rpn-cmd.h
+++ b/src/rpn-cmd.h
@@ -17,8 +17,8 @@ program::keyword_t program::_keywords[] =
     { cmd_keyword, "version", &program::rpn_version, "show rpn version" },
     { cmd_keyword, "uname", &program::rpn_uname, "show rpn complete identification string" },
 
-    //ALGEBRA
-    { cmd_undef, "", NULL, "\nALGEBRA"},
+    //REAL
+    { cmd_undef, "", NULL, "\nREAL"},
     { cmd_keyword, "+", &program::plus, "binary operator +" },
     { cmd_keyword, "-", &program::minus, "binary operator -" },
     { cmd_keyword, "neg", &program::neg , "unary operator - (negation)" },