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+``range``
+=========
+
+Returns a list containing an arithmetic progression of integers:
+
+.. code-block:: twig
+
+    {% for i in range(0, 3) %}
+        {{ i }},
+    {% endfor %}
+
+    {# outputs 0, 1, 2, 3, #}
+
+When step is given (as the third parameter), it specifies the increment (or
+decrement for negative values):
+
+.. code-block:: twig
+
+    {% for i in range(0, 6, 2) %}
+        {{ i }},
+    {% endfor %}
+
+    {# outputs 0, 2, 4, 6, #}
+
+.. note::
+
+    Note that if the start is greater than the end, ``range`` assumes a step of
+    ``-1``:
+
+    .. code-block:: twig
+
+        {% for i in range(3, 0) %}
+            {{ i }},
+        {% endfor %}
+
+        {# outputs 3, 2, 1, 0, #}
+
+The Twig built-in ``..`` operator is just syntactic sugar for the ``range``
+function (with a step of ``1``, or ``-1`` if the start is greater than the end):
+
+.. code-block:: twig
+
+    {% for i in 0..3 %}
+        {{ i }},
+    {% endfor %}
+
+.. tip::
+
+    The ``range`` function works as the native PHP `range`_ function.
+
+Arguments
+---------
+
+* ``low``:  The first value of the sequence.
+* ``high``: The highest possible value of the sequence.
+* ``step``: The increment between elements of the sequence.
+
+.. _`range`: https://secure.php.net/range