Mathematics is digital, or abstract? Mathematics to solve practical problems, or just to explore the logic?
Junior high school math, high school math, college still learning mathematics, mathematics in the end what he was saying? Derivative? Integral? = AX or the y- 2 + BX + c mathematical formula for this? In mathematics thousands of years ago it says, is used as a counting tool, mathematics of this period is to count. With the increase of people's study and life needs. Becoming more and more esoteric mathematics, mathematics becomes abstract. Become irrelevant. Mathematics is an abstraction. = AX is like asking the y- 2 + BX + c what it is, he is a function, then what is the function? Simple function of the number used to describe the relationship between the two sets. What mathematics is just an abstract mathematical problems in our life, expressed in a more concise language.