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math: remove logb

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As discussed in #12112, this is a false friend (the libc logb()
does something else), and without keyword arguments or at least
function overloading, this is hard to read.
Better use "/ log(base)" trick.
This commit is contained in:
Johannes Altmanninger
2025-12-05 14:45:52 +01:00
parent 47c773300a
commit fceb600be5
4 changed files with 4 additions and 21 deletions
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doc_src/cmds/math.rst
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@@ -153,11 +153,9 @@ Functions
``ln``
the base-e logarithm
``log`` or ``log10``
the base-10 logarithm
the base-10 logarithm. To compute the logarithm for an arbitrary base ``b``, use ``log(x) / log(b)``.
``log2``
the base-2 logarithm
``logb(b,x)``
returns the logarithm with base b of x
``max``
returns the largest of the given numbers - this takes an arbitrary number of arguments (but at least one)
``min``