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7.7.17.0. LengthSym
Procedure from library qmatrix.lib (see qmatrix_lib).
- Usage:
- LengthSym(M); M an intmat
- Return:
- intvec
- Purpose:
- determine a vector, where the i-th element is the length of the permutation of S(n) given by the i-th row of M
- Assume:
- M represents a subset of S(n) (each row must be an element of S(n)); otherwise, the output may have no sense
Example:
| | LIB "qmatrix.lib";
def M = SymGroup(3); M;
==> 1,2,3,
==> 1,3,2,
==> 3,1,2,
==> 2,1,3,
==> 2,3,1,
==> 3,2,1
LengthSym(M);
==> 0,1,2,1,2,3
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See also:
LengthSymElement;
SymGroup.
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