1, published by different units: Li Lin Beihang Edition was published by Beihang Press, while the real edition was compiled by the postgraduate mathematics proposition research group.
2. Different contents: Li Lin Beihang edition mainly includes three parts: advanced mathematics, linear algebra, probability theory and mathematical statistics, while the real edition is divided into three versions: mathematics I, mathematics II and mathematics III, and each version includes three parts: advanced mathematics, linear algebra, probability theory and mathematical statistics.