Sample Entropy not same value

[allran]

I compared the libraries：antropy, pyentrp, EntropyHub。 For example, calculate Sample Entropy, all not the same value。 Isn't the algorithm the same？

import antropy as ant
entropy1_5 = ant.sample_entropy(X)

from pyentrp import entropy as ent
entropy2_2 = ent.sample_entropy(X, 2)

import EntropyHub as EH
Samp, _, _ = EH.SampEn(X)