Li Yongle's scientific interpretation of dreams _ Li Yongle talks about science.

Which school is Mr. Li Yongle a professor? How did you hear that he was taking classes at Shanshi Normal University? (That is, Li Yongle, the king of the line)

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Extraction code: tdv2 linear algebra is a branch of mathematics, and its research objects are vectors, vector spaces (or linear spaces), linear transformations and linear equations with finite dimensions. Vector space is an important subject in modern mathematics. Therefore, linear algebra is widely used in abstract algebra and functional analysis; Through analytic geometry, linear algebra can be expressed concretely. The theory of linear algebra has been extended to operator theory. Because the nonlinear model in scientific research can usually be approximated as a linear model, linear algebra is widely used in natural science and social science. ?