General mathematical formula: the axiom that many people have worked hard and summed up for many years, users just need to follow it and stop studying its ins and outs, which greatly shortens the cycle of research and teaching. Algorithm: Computerize the above general formula. When a computer performs mathematical operations, it can only do addition (CPU is an adder plus a counter and an address code register). Computers are actually stupid, and people use the rapid movement of electrons to complete the most basic addition operation. So for multiplication, division, power, root, differential, integral. . . Formulas such as, etc. , should be converted into a formula that only does addition, subtraction, multiplication and division. For example, turning trigonometric functions into series is an example.