Added is_integer() function to QQbar.py

sagemath · Feb 13, 2014 · 4a87fae · 4a87fae
1 parent 36fab41
commit 4a87fae
Showing 1 changed file with 11 additions and 0 deletions.
diff --git a/src/sage/rings/qqbar.py b/src/sage/rings/qqbar.py
@@ -3289,6 +3289,17 @@ def is_square(self):
         else:
             return True
 
+    def is_integer(self):
+        """Return True if this number is a integer
+
+        EXAMPLES::
+            sage: QQbar(2).is_integer()
+            True
+            sage: QQbar(1/2).is_integer()
+            False
+        """
+        return self in ZZ
+
     def sqrt(self, all=False, extend=True):
         """
         Return the square root(s) of this number.