It means that a certain quantity (population, income, scale) grows exponentially in a certain period of time. The characteristic of this growth mode is that the growth rate is gradually accelerated and the growth rate is getting bigger and bigger.
1, compare commodity prices.
Go to different supermarkets or stores to extract and investigate the price of the same commodity, and then compare the prices of various commodities freely, and connect them with ">"
2. Calculation of water and electricity charges
Aunt Li brought back an invoice after paying the water and electricity bill. She forgot to take it out when changing clothes and accidentally rubbed off a corner. The data can be seen as follows: electricity 160, water 25 tons, each ton 1.70 yuan, total payment 138.5 yuan. From this, the amount of water and electricity fees paid can be calculated. According to the equivalence relation: total cost-water fee = electricity fee, the formula is (138.5-1.70× 25) ÷160 = 0.60 yuan.
3. Calculate commodity prices
When shopping in supermarkets or shopping malls, you can use activities such as buy one get one free and discount to calculate the actual price of goods according to the price X discount.
4. Calculation of the program
Computer-related workers, mathematics is essential in their work. Writing programs in C language requires sorting algorithms, such as quick sorting, insert sorting, heap sorting, merge sorting, radix sorting, hill sorting, bucket sorting, tournament sorting and so on. If you master the relevant knowledge of data structure, it will become very easy.
The importance of mathematics
1. Scientific exploration and technological innovation are the common dreams of human society. Only with the foundation of mathematical knowledge can it be realized.
2. At present, cutting-edge technologies in the fields of artificial intelligence, big data, cloud computing, biomedicine, aerospace, ocean engineering, advanced manufacturing, oil and gas exploitation, new energy and so on are inextricably linked with mathematics.
3, from saving deposits to buying food and spending money, mathematics in life can be seen everywhere, and its importance can be seen in general.