The difference between the first and the second
The specific scope and content of the preliminary mathematics test are higher mathematics function, limit, continuity, calculus of univariate function, vector algebra and spatial analytic geometry, calculus of multivariate function, infinite series, linear algebraic determinant of ordinary differential equation, matrix, vector, linear equations, eigenvalues and eigenvectors of matrix and quadratic form.
The specific scope and content of the second test of mathematics are higher mathematics limit, continuity, unary function calculus, ordinary differential equation, linear algebraic determinant, matrix, vector, linear equations, eigenvalue and eigenvector of matrix.