Physics is the subject that is most closely combined with mathematics. Physics is the law of studying everything in the universe, but how to study it needs mathematical methods to quantify and calculate it. Many things in physics need mathematical methods to explain, and many problems encountered in physics will also promote the development of mathematics. Some branches of mathematics appeared because some physical problems appeared, and mathematics could not be solved at that time. Let's just say that physics asks you to make a list of formulas and tell you why you got this formula, while mathematics helps you solve it. In fact, mathematics and physics are difficult to distinguish, and the two disciplines are too closely combined. Many theoretical physicists are mathematicians. Anyway, it is necessary to learn physics and mathematics well. Of course, mathematics is not only calculation, but also logic and many other things. However, after learning mathematics well, you may not be able to learn physical chemistry well. After all, they still have their own theoretical things.