Mathematics is one of the foundations of science. Take the three major sciences in high school as an example: physics is inseparable from mathematics. Mathematics is a tool discipline of physics and one of the foundations of physics. Chemistry and deep chemistry need to borrow some theorems of physics before they can be combined with physics. At the same time, chemistry itself has many parts that need complex calculation, and some calculation methods need to learn from mathematics. Biology, biology can not be separated from chemistry, and the calculation of biology is more bizarre than chemistry and needs more mathematical assistance.

Then take a look at the three major subjects as the basis. The design of the house you live in needs architecture (physics+mathematics), building materials need materials science (physics+chemistry), and builders need management science (mathematics). The rice you eat is biologically cultivated, and then you can use mathematics to predict the market and harvest it regularly. After that, you have to cook it with electricity. Electricity is physics, and power grid is mathematics, architecture, material science and many other disciplines.

Finally, the computer and Internet you use to ask questions are based on pure mathematics.