@article{LIANG2024, 
author = {Zhibin LIANG and Yulun WANG},
title = {Irrationality measures of several types of irrational numbers},
year = {2024},
journal = {Journal of Capital Normal University (Natural Science Edition)},
volume = {45},
number = {1},
pages = {116-123},
keywords = {generalized continued fractions, irrationality measure, irrational number},
url = {https://www.sciopen.com/article/10.19789/j.1004-9398.2024.01.011},
doi = {10.19789/j.1004-9398.2024.01.011},
abstract = {This paper uses generalized continued fractions to approximate              e        r    ,  tan  ⁡  (  r  )  ,  tanh  ⁡  (  r  )  ,  r  ∈            Q        ∗   and shows that they are irrational numbers, and their irrationality measures are 2.}
}