Clarify doc of init in map_word
#4498
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lgoettgens
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documentation
Codecov ReportAll modified and coverable lines are covered by tests ✅
Additional details and impacted files@@ Coverage Diff @@
## master #4498 +/- ##
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Coverage 84.55% 84.55%
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Files 672 672
Lines 88888 88888
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+ Hits 75157 75159 +2
+ Misses 13731 13729 -2
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ThomasBreuer
approved these changes
Jan 24, 2025
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| If `init` is different from `nothing`, return $x g_{i_1}^{e_1} g_{i_2}^{e_2} \cdots g_{i_n}^{e_n}$ where $x =$ `init`. | ||
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| See also: [`map_word(::Union{FPGroupElem, SubFPGroupElem}, ::Vector)`](@ref), [`map_word(::Vector{Union{Int, Pair{Int, Int}}}, ::Vector)`](@ref). |
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The two references point to the same section. Wouldn't one reference be enough?
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The behaviour of
inithas been settled in #3892, but there were some problems with the documentation:initwas not documented at all forPcGroups.map_word([], genimgs, init=init)isone(genimgs[1])ifgenimgsis non-empty. This is incorrect, it isinit.initis the left-most factor if it is specified to the beginning. I found the way it was done previously confusing.I also added examples illustrating the behaviour for integer lists and for
map_word([], []).