alphabet(size_t) const¶
-
std::string
libsemigroups::fpsemigroup::KnuthBendix
::
alphabet
(size_t i) const¶ Returns the i-th letter of the alphabet of the finitely presented semigroup represented by
this
.- Return
A std::string by value.
- Complexity
Constant.
- Parameters
i
: the index of the letter.
- Exceptions
std::range_error
: if the indexi
is out of range.