100 integral?

After the final exam, Xiao Liang went home and said, "I got 100 this time." Mom and dad are very happy after hearing this. ? Xiao Liang went on to say, "It means that the two doors add up 100 points." Dad will hit when he hears the hand-waving, and his mother advises him: "Even if you get 40 points in Chinese, you should get 60 points in arithmetic. There is always a level! " Xiao Liang said indignantly, "Mom, it's not that algorithm! The language is 10 and the arithmetic is 0. Isn't it 100 when added together? ?

Interesting math problem. How old is Xiaoling?

An uncle asked how old Smarty was, and he said, "If I subtract my twice age three years later from my twice age three years ago, it is equal to my present age? ?

Gap bridge

Is there an A today? b？ c？ d？ At night, four people will walk from the left to the right of the bridge. Only two people can walk on this bridge at a time, and there is only one flashlight. You must cross the bridge with a flashlight. The fastest time for four people to cross the bridge is as follows: a? 2? Points; B, is it? 3? , integral; C, is it? 8? Points; d？ 10. Fast walkers have to wait for slow walkers. How can I get there? 2 1? Integral? Let everyone cross the bridge.

Euler (1707 ~ 1783)?

Euler, Swiss mathematician, member of the Royal Society. Euler was fascinated by mathematics since he was a child, and he was an out-and-out mathematical genius. /kloc-became a student of a prestigious Basel school at the age of 0/3,/kloc-obtained a master's degree at the age of 0/6, and was promoted to a professor at the age of 23. 1727 was invited to work in the Academy of Sciences in St. Petersburg, Russia. Overwork blinded him. However, it didn't affect his work? . Euler has an amazing memory. Hydrogen theory 177 1 a fire in St. Petersburg reduced his large collection of books and manuscripts to ashes. With his amazing memory, he dictated and published more than 400 papers and many works. Euler, a mathematical superstar in the 0/8th century, is in calculus, differential equations, geometry, number theory, variational theory and so on. He has made great contributions in various fields, thus establishing his position as the founder of variational method and the pioneer of complex variable function. At the same time, he is also an excellent popular science writer, and his popular science books have been reprinted for 90 years. Euler is the most prolific mathematician ever. It is said that his precious cultural heritage was enough for all the printing presses in St. Petersburg to be busy for several years at the same time.

As one of the four mathematicians who have made the greatest contribution to mathematics in history (the other three are Archimedes, Newton and Gauss), Euler is known as "Shakespeare in mathematics". ?

Famous sayings of mathematics celebrities

Mathematics is the queen of science and number theory is the queen of mathematics. Gauss

As long as a branch of science can raise a large number of questions, it is full of vitality, and no questions indicate the termination or decline of independent development. -Hilbert

Napoleon said: "Only by vigorously developing mathematics can a country show its national strength. The development and perfection of mathematics is closely related to the prosperity of the country?

Qiu Chengtong said: "After modern high-energy physics reaches quantum physics, many of them can't do experiments at all, which is not much different from what mathematicians think, so mathematics has incredible power in physics"?

Hua said: "The size of the universe, the tiny particles, the speed of rockets, the ingenuity of chemical engineering, the change of the earth, the mystery of biology and the complexity of daily use require mathematics everywhere." ?

Only by successfully applying mathematics can a science be truly perfect. Marx

In the world of mathematics, what matters is not what we know, but how we know it. Pythagoras

Smile happily: subtraction

In math class, the teacher said to a student, "How come you can't even subtract?" ? For example, there are ten apples in your house, and you ate four. What is the result? " ? The student said gloomily, "I was slapped ten times!" ?

The Use of Logic A student asked Einstein about the use of logic. Einstein asked him, "Two people came out of the chimney? Climbing out of the room, one was covered in soot and the other was clean. Which one do you think should take a bath? " "Of course? That's the dirty one. " The student said. ? "No .. the dirty one saw each other clean and felt that he would not be dirty. Where shall I take a bath? " ?

One day, several cards were having lunch together. Brother 0 said, "Let's take some photos together. What do you think? " ? 0' s brothers and sisters said in unison, "Good." ? Brother 8 said, "Brother 0' s idea is really good. I always provide cameras and films, okay? " ? Old 4 said, "Yes, it's just a little too much trouble. Better use my digital camera. That's settled. " ? So, they got busy, and finally took photos for them, and immediately sent the digital camera to the store to develop photos. When the photos were developed, the computer sister asked them for money, but who paid for it? They looked at each other blankly. This is the computer girl who said, "Five dollars has eleven brothers and sisters". How much do you pay per person? "

Math story Han Xin points soldiers.

There was a general named Han Xin in the Han Dynasty in China. Every time he counts soldiers, he only asks his men to count off at L ~ 3, 1 ~ 5, 1 ~ 7, and then reports the remainder of each team's count, so he knows how many people have arrived. His ingenious algorithm is called "Ghost Valley Calculation", "Partition Calculation" or "Han Xin's Point Force", and foreigners call it "Chinese remainder theorem". Cheng Dawei, a mathematician in the Ming Dynasty, summed up this algorithm in his poems. He wrote:? Three people walk seventy times, five trees and twenty-one sticks. Seven sons reunited in the middle of the month and didn't know until 105. ? The meaning of this poem is: multiply the remainder obtained by dividing 3 by 70, the remainder obtained by dividing 5 by 2 1, and the remainder obtained by dividing 7 by 15. If the result is greater than 105, subtract the multiple of 105, and you will know the number you want. ? For example, there must be 52 eggs in a basket. If there are 3 eggs in 3 places, 1, there are 5 eggs in 5 places, 2 eggs in 7 places and 3 eggs in 7 places. The formula is:? 1×70+2×2 1+3× 15= 157? 157- 105 = 52 (pieces)