Savings, insurance and tax payment are the most common mathematical problems related to financial management.
In life, if the product promotion exceeds xx, it will be sent to xx.
Mathematics and daily life are two intertwined lines, which was put forward by gautam Mukherjee, a 45-year-old Indian mathematician, at the recent International Congress of Mathematicians. About 3500 experts attended the meeting, discussed the present situation and prospect of mathematics, and explained how mathematics affects people's daily life.
From thermostats to internet search engines. If the constant temperature index of the heater is determined to be 20 degrees Celsius, the machine should first heat the room temperature to above 20 degrees Celsius, then stop working until the room temperature drops below 20 degrees Celsius, and then restart heating. Enrique Zuazua, a professor at the Autonomous University of Madrid, pointed out: "When to start heating and when to stop heating is not arbitrary, and it needs to be accurately calculated through mathematical equations." These equations are used to maintain the running speed of optical disks or to determine when to add water to underground reservoirs.
Zuazua said: "People are used to thinking that things run independently, but in fact there are other factors behind them." For example, it is not accidental to search for a word with a search engine on the Internet. He said: "In the eyes of mathematicians, the network is like countless glass balls placed on a certain plane. You must find the ball you need and classify it. This process is carried out by calculating the formulas of all variables. "
-Bike helmets and energy-efficient cars. In recent years, the front part of bicycle helmet is more and more round, and the back part is more like a bird's beak. This change is not out of aesthetic considerations, but based on aerodynamic principles, aiming at making athletes achieve better results. Engineers simulate the movement of solids in air through different equations until they get the best design data. Equations are needed in the design of airplanes, automobiles and ships to achieve the purpose of being faster, more durable and more fuel-efficient.
-decision-making and management. Angel sanchez, a professor at Carlos III University in Madrid, said that in enterprises, we can learn about employees' interpersonal relationships through mathematics, such as which employee has the best interpersonal relationship and who has the most comprehensive information. Mathematicians use mathematical theorems to calculate employees' e-mail records and draw conclusions.
Mathematics is also widely used in sociology, especially statistics. It can even be used to avoid epidemics or reduce their effects. When we can't immunize the whole population, mathematics can help us determine who must be vaccinated to reduce the risk.
In the field of art, mathematics is still everywhere. Music, painting, sculpture ... all kinds of arts are helped by mathematics in one way or another. Japanese sculptor Chao Huisan likes to create his own works with geometry and topology, and carve granite by mathematical calculation. Chao Huisan said: "Mathematics is the language of the universe." (