Tighten documentation for Random.triangular.
diff --git a/Doc/library/random.rst b/Doc/library/random.rst
index a064ac4..712add4 100644
--- a/Doc/library/random.rst
+++ b/Doc/library/random.rst
@@ -192,13 +192,13 @@
.. function:: triangular(low, high, mode)
- Return a random floating point number *N* such that ``low <= N < high``
- and with the specified *mode* between those bounds.
+ Return a random floating point number *N* such that ``low <= N < high`` and
+ with the specified *mode* between those bounds. The *low* and *high* bounds
+ default to zero and one. The *mode* argument defaults to the midpoint
+ between the bounds, giving a symmetric distribution.
- If *mode* is not specified or is ``None``, it defaults to the midpoint
- between the upper and lower bounds, producing a symmetric distribution.
+ .. versionadded:: 2.6
- The default values for *low* and *high* are zero and one.
.. function:: betavariate(alpha, beta)