1. Applicable to different majors: Mathematics I must use: mechanics, mechanical engineering, optical engineering, instrument science and technology, metallurgical engineering, power engineering and engineering thermophysics, electrical engineering, electronic science and technology, information and communication engineering, control science and engineering, computer science and technology, civil engineering, water conservancy engineering, surveying and mapping science and technology, transportation engineering, ship and ocean engineering. It is necessary to use all two disciplines and majors of the first-level disciplines such as textile science and engineering, light industry technology and engineering, agricultural engineering, forestry engineering, food science and engineering. You must choose Math I or Math II as the discipline major: two disciplines with higher requirements for Math, and among the first-class engineering disciplines such as material science and engineering, chemical engineering and technology, geological resources and geological engineering, mining engineering, oil and gas engineering, environmental science and engineering, you should choose Math I as the major and Math II as the minor.

2. The test content is different: Mathematics 1: advanced mathematics (or calculus) is about 60%+linear algebra is about 20%+probability theory and mathematical statistics is about 20%; Mathematics 2: advanced mathematics (or calculus) is about 80%+linear algebra is about 20%; Probability theory and mathematical statistics in mathematics.

3. The difficulty of the exam is different: Generally speaking, the difficulty of math 1 is higher than that of math 2. After all, math 1 is for majors with higher engineering requirements.