Natural language usually refers to the language that evolves naturally with culture. For example, Chinese, English and Japanese are all examples of natural languages, and this usage can be seen in the word natural language processing. Natural language is the main tool for human communication and thinking.
mathematical formula
In mathematics, formula refers to the formula listed in the calculation of numerical or algebraic expressions, including letters or algebras of numbers and operation symbols (four operations, power, root, factorial, permutation and combination, etc.). ).
According to the different calculation methods, the formulas are generally divided into horizontal and vertical. Different from expressions, expressions are meaningful expressions that connect data of the same type (such as constants, variables, functions, etc.). ) Use operation symbols according to certain rules.