alphabet(size_t) const¶
-
inline std::string libsemigroups::FpSemigroup::alphabet(size_t i) const¶
Returns the i-th letter of the alphabet of the finitely presented semigroup represented by
this
.- Complexity
Constant.
- Parameters
i – the index of the letter.
- Throws
std::range_error – if the index
i
is out of range.- Returns
A std::string by value.