Cycles of a permutation: Difference between revisions
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""" length of Perm """ |
""" length of Perm """ |
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Base.length(p::Perm) = length(p.a) |
Base.length(p::Perm) = length(p.a) |
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""" iterator interface for Perm """ |
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Base.iterate(p::Perm, state = 1) = state > length(p) ? nothing : (p[state], state + 1) |
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""" index into a Perm """ |
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Base.getindex(p::Perm, i::Int64) = p.a[i] |
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""" permutation signage for the Perm """ |
""" permutation signage for the Perm """ |
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return Perm(a) |
return Perm(a) |
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end |
end |
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""" Get the Perm that functions to change one permutation result to another """ |
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transform(p1::Perm, p2::Perm) = inv(p1) * p2 |
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""" Get cycles of a Perm permutation as a vector of integer vectors, optionally with singles """ |
""" Get cycles of a Perm permutation as a vector of integer vectors, optionally with singles """ |
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