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math: Add log2

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This was already in the documentation as an example, now it is
actually working.

Fixes #7734
This commit is contained in:
Fabian Homborg
2021-02-21 08:48:38 +01:00
parent dc417f58ae
commit cbd8f5f63e
3 changed files with 5 additions and 0 deletions
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doc_src/cmds/math.rst
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@@ -87,6 +87,7 @@ Functions
- ``floor`` - round number down to nearest integer
- ``ln`` - the base-e logarithm
- ``log`` or ``log10`` - the base-10 logarithm
- ``log2`` - the base-2 logarithm
- ``ncr`` - "from n choose r" combination function - how many subsets of size r can be taken from n (order doesn't matter)
- ``npr`` - the number of subsets of size r that can be taken from a set of n elements (including different order)
- ``pow(x,y)`` returns x to the y (and can be written as ``x ^ y``)