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StringTools[Permute] - apply a given permutation to a string
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Calling Sequence
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Permute( s, perm )
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Parameters
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s
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Maple string
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perm
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list of integers; permutation of 1 .. length(s)
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Description
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The Permute(s, perm) command applies a given permutation perm to the string s.
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The permutation perm must be a permutation of the integer  , given as a list.
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Examples
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![Permute("abc", [1, 2, 3])](/support/helpjp/helpview.aspx?si=5782/file03067/math73.png)
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![Permute("abc", [1, 3, 2])](/support/helpjp/helpview.aspx?si=5782/file03067/math80.png)
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![Permute("abc", [2, 1, 3])](/support/helpjp/helpview.aspx?si=5782/file03067/math87.png)
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![Permute("abc", [2, 3, 1])](/support/helpjp/helpview.aspx?si=5782/file03067/math94.png)
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![Permute("abc", [3, 1, 2])](/support/helpjp/helpview.aspx?si=5782/file03067/math101.png)
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![Permute("abc", [3, 2, 1])](/support/helpjp/helpview.aspx?si=5782/file03067/math108.png)
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| (6) |
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![Permute("abc", [2, 1, 4, 3])](/support/helpjp/helpview.aspx?si=5782/file03067/math115.png)
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![Permute("abc", [2, 3, 3])](/support/helpjp/helpview.aspx?si=5782/file03067/math125.png)
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Using combinat[permute] you can construct all permutations of a string.
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AllPermutations := proc( s::string )
local p;
seq( StringTools:-Permute( s, p ),
p = combinat[ 'permute' ]( length( s ) ) )
end proc:
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| (7) |
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| (8) |
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