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-rw-r--r--Doc/library/math.rst7
1 files changed, 7 insertions, 0 deletions
diff --git a/Doc/library/math.rst b/Doc/library/math.rst
index 98c5b33..8254d3f 100644
--- a/Doc/library/math.rst
+++ b/Doc/library/math.rst
@@ -184,6 +184,13 @@ Power and logarithmic functions
result is calculated in a way which is accurate for *x* near zero.
+.. function:: log2(x)
+
+ Return the base-2 logarithm of *x*.
+
+ .. versionadded:: 3.3
+
+
.. function:: log10(x)
Return the base-10 logarithm of *x*. This is usually more accurate