import math for factorial

add PermutationResetSampler

add AdderSampler

add quaternion group

minor update: change the default n for DihedralSampler

add Dihedral groups

minor clean up: f() in CyclicSampler

minor update: add __info__ to CyclicSampler

add cyclic groups; fix random seeds (should use self.np_rng, otherwise the seed is not fixed)

add alternating groups; add a parent class 'PermutationSampler' for symmetric and alternating groups

add option 'random_length'

add ABAB; add __info__ string & help()

minor update: change "self.name"

add gridworld (and a parent class 'BinaryInputSampler')

add sampler for symmetric groups

Update automata.py

Update automata.py

Update automata.py

Update automata.py

Update automata.py

Update automata.py

Update automata.py

Update automata.py

Update automata.py

Update automata.py

Update automata.py

Update automata.py

Update automata.py

type check hints for features

rename to follow HF convention

add ace (MockupSampler)

initial commit