When Su Dongpo, a great poet in the Song Dynasty, was young, he went to Beijing with several schoolmates to take the exam. When they arrived at the examination center, it was too late. The examiner said, "I made a couplet. If you are right, I will let you into the examination room." The examiner's couplet is: a boat alone, two or three students, four oars and five sails, crossing six beaches and seven bays, which is very late.
Su Dongpo's bottom line is: ten years of cold window, entering the 98 th Hospital, abandoning worldly desires, studying hard the Five Classics and Four Books, and taking the exam three times and two times. Today, he must succeed
Examiners and Su Dongpo both embedded the ten numbers from one to ten in couplets, vividly describing the hardships of scholars.
Wrong decimal point
Learning mathematics should not only solve problems correctly, but also make no mistakes in the specific problem-solving process.
An old woman living on a pension in Chicago, USA, went home after minor surgery in the hospital. Two weeks later, she received a bill from the hospital for $63,440. When she saw such a huge number, she couldn't help being surprised and fell to the ground and died. Later, someone checked with the hospital. As a result, the computer misplaced the decimal point, and actually only needed to pay $63.44.
A wrong decimal point will actually kill a person. As Newton said, "In mathematics, the smallest error can't be ignored.
When did 2 1 century begin?
Century is the unit for calculating age, and a hundred years is a century.
The start year and end year of the first century are 1 and 100 respectively. A common mistake is that some people regard the starting year as the year zero, which obviously does not conform to logic and our habits, because in general, the calculation of ordinal numbers starts from "1" instead of "0". It is this misunderstanding that led to the misunderstanding that the year at the end of the century was 99 AD, which is why 1999 was wrongly considered as the year at the end of the twentieth century and the year 2000 was the year at the beginning of the twenty-first century. Because the AD count is ordinal, it should start with "1", and the first year of 2 1 century is 20065433.
Buffon's test
One day, French mathematician Buffon invited many friends to his home and did an experiment. Buffon spread a big piece of white paper on the table, which was covered with parallel lines with equal distance. He also took out many small needles of equal length, the length of which was half that of parallel lines. Buffon said, "Please feel free to leave these small needles on this piece of white paper!" " The guests did as he said.
Buffon's statistics show that everyone * * * throws 22 12 times, in which the small needle intersects the parallel line on the paper 704 times, and 2210 ≈ 704 ≈ 3.142. Buffon said, "This number is an approximation of π. Every time you get an approximation of pi, the more times you throw it, the more accurate the approximation of pi is. " This is the famous Buffon Experiment.
Mathematical magician
198 1 One day in summer, India held a mental arithmetic competition. The performer is a 37-year-old woman from India. Her name is Shagongtana. On that day, she will compete with an advanced electronic computer with amazing mental arithmetic ability.
The staff wrote a long list of 20/kloc-0 bits, asking to find the 23rd root of this number. As a result, it took Shagongtana only 50 seconds to report the correct answer to the audience. In order to get the same answer, the computer must input 20,000 instructions, and then calculate, which takes much more time than Shagongtana.
This anecdote caused a sensation in the world, and Shagongtana was called a "mathematical magician".
Hua worked until the last day.
Watson was born in Jiangsu. He likes math since he was a child, and he is very clever. 1930, 19-year-old Hua went to Tsinghua University to study. During his four years in Tsinghua, under the guidance of Professor Xiong Qinglai, Hua studied hard and published more than a dozen papers in succession. Later, he was sent to study in Britain and got a doctorate. He studied number theory deeply and got the famous Fahrenheit theorem. He paid special attention to integrating theory with practice and traveled to more than 20 provinces, municipalities and autonomous regions to mobilize the masses to apply the optimization method to agricultural production.
The reporter asked him in the interview: "What is your greatest wish?"
Without thinking, he replied, "Work until the last day." On the last day of working hard for science, he really fulfilled his promise.
Clever couplets
When Su Dongpo, a great poet in Song Dynasty, was young, he went to Beijing with several schoolmates to take the exam. When they arrived at the examination center, it was too late. The examiner said, "I made a couplet. If you are right, I will let you into the examination room." The examiner's couplet is: a boat alone, two or three students, four oars and five sails, crossing six beaches and seven bays, which is very late.
Su Dongpo's bottom line is: ten years of cold window, entering the 98 th Hospital, abandoning worldly desires, studying hard the Five Classics and Four Books, and taking the exam three times and two times. Today, he must succeed
Examiners and Su Dongpo both embedded the ten numbers from one to ten in couplets, vividly describing the hardships of scholars.
Wrong decimal point
Learning mathematics should not only solve problems correctly, but also make no mistakes in the specific problem-solving process.
An old woman living on a pension in Chicago, USA, went home after minor surgery in the hospital. Two weeks later, she received a bill from the hospital for $63,440. When she saw such a huge number, she couldn't help being surprised and fell to the ground and died. Later, someone checked with the hospital. As a result, the computer misplaced the decimal point, and actually only needed to pay $63.44.
A wrong decimal point will actually kill a person. As Newton said, "In mathematics, the smallest error can't be ignored.
When did 2 1 century begin?
Century is the unit for calculating age, and a hundred years is a century.
The start year and end year of the first century are 1 and 100 respectively. A common mistake is that some people regard the starting year as the year zero, which obviously does not conform to logic and our habits, because in general, the calculation of ordinal numbers starts from "1" instead of "0". It is this misunderstanding that led to the misunderstanding that the year at the end of the century was 99 AD, which is why 1999 was wrongly considered as the year at the end of the twentieth century and the year 2000 was the year at the beginning of the twenty-first century. Because the AD count is ordinal, it should start with "1", and the first year of 2 1 century is 20065433.
Buffon's test
One day, French mathematician Buffon invited many friends to his home and did an experiment. Buffon spread a big piece of white paper on the table, which was covered with parallel lines with equal distance. He also took out many small needles of equal length, the length of which was half that of parallel lines. Buffon said, "Please feel free to leave these small needles on this piece of white paper!" " The guests did as he said.
Buffon's statistics show that everyone * * * throws 22 12 times, in which the small needle intersects the parallel line on the paper 704 times, and 2210 ≈ 704 ≈ 3.142. Buffon said, "This number is an approximation of π. Every time you get an approximation of pi, the more times you throw it, the more accurate the approximation of pi is. " This is the famous Buffon Experiment.
Mathematical magician
198 1 One day in summer, India held a mental arithmetic competition. The performer is a 37-year-old woman from India. Her name is Shagongtana. On that day, she will compete with an advanced electronic computer with amazing mental arithmetic ability.
The staff wrote a long list of 20/kloc-0 bits, asking to find the 23rd root of this number. As a result, it took Shagongtana only 50 seconds to report the correct answer to the audience. In order to get the same answer, the computer must input 20,000 instructions, and then calculate, which takes much more time than Shagongtana.
This anecdote caused a sensation in the world, and Shagongtana was called a "mathematical magician".
Hua worked until the last day.
Watson was born in Jiangsu. He likes math since he was a child, and he is very clever. 1930, 19-year-old Hua went to Tsinghua University to study. During his four years in Tsinghua, under the guidance of Professor Xiong Qinglai, Hua studied hard and published more than a dozen papers in succession. Later, he was sent to study in Britain and got a doctorate. He studied number theory deeply and got the famous Fahrenheit theorem. He paid special attention to integrating theory with practice and traveled to more than 20 provinces, municipalities and autonomous regions to mobilize the masses to apply the optimization method to agricultural production.
The reporter asked him in the interview: "What is your greatest wish?"
Without thinking, he replied, "Work until the last day." On the last day of working hard for science, he really fulfilled his promise.
About 1500 years ago, European mathematicians did not know how to use "0". They use Roman numerals. Roman numerals are symbols representing numbers, which are combined to represent different numbers according to certain rules. When using this number, the number "0" is not needed. At that time, a scholar of the Roman Empire discovered the symbol "0" from Indian notation. He found it very convenient to use "0" for mathematical operation, and he was very happy. He also introduced the Indian method of "0" to everyone. After a while, it was known by the pope at that time. At that time, it was the Middle Ages in Europe. The power of the church was very strong, and the power of the pope far exceeded that of the emperor. The Pope was very angry. He rebuked that the sacred number was created by God, and there was no such monster as "0" in the number created by God. Anyone who wants to introduce now is blasphemous! So the Pope ordered the scholar to be arrested and tortured, and his ten fingers were tightly clamped with a clamp, so that his hand was disabled and he could no longer write with a pen. In this way, "0" was banned by the ignorant and cruel Pope. However, although the use of "0" is forbidden, Roman mathematicians still use "0" secretly in mathematical research regardless of the ban, and still make a lot of mathematical contributions with "0". Later, "0" was finally widely used in Europe, but Roman numerals were gradually eliminated. Children, do you know the story of Gauss, a mathematical genius, when he was a child? When Gauss was in elementary school, once after the teacher taught addition, because the teacher wanted to have a rest, he came up with a topic for students to calculate. The topic is:1+2+3+...+97+98+99+100 =? The teacher is thinking, now the children must start class! I used this as an excuse to go out, but Gauss stopped me! ! It turns out that Gauss has worked it out. Little friend, do you know how he did it? Gauss told us how he worked it out: add 1 to 100, and add 100 to 1, adding two lines. That is to say:1+2+3+4+...+96+97+98+99+100+99+98+97+96+...+4+3+2+65448./kloc- 5050 >； Since then, the learning process of Gauss Elementary School has already surpassed other students, which laid the foundation for his future mathematics and made him a mathematical genius! In daily life, mathematics is everywhere, such as buying and selling vegetables, calculating how much money ... here is a short story, a story between numbers. One day, when the digital cards were having lunch together, the youngest one spoke. 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 will be a good person once. Shall I provide camera and film for Brother 8? " Old four said, "starling, yes, it's just a little troublesome." Better use my digital camera. That's settled. "So, they got busy. Finally, they helped them shoot, and immediately sent the digital camera to the print shop. The computer sister tried to ask them for money, but who paid for it? They stared at each other one after another. This is what the computer sister said, "A ***5 yuan, a * * * eleven brothers and sisters, how much does a person pay on average? "Among the eleven of them, Liu is the cleverest, and this time it is the first to work out the result. Do you know how it is worked out? One day, the Tang Priest told his disciples Wukong, Bajie and Friar Sand to go to Huaguoshan to pick peaches. Before long, the three disciples returned happily after picking peaches. Tang Priest and his disciples asked: How many peaches did each of you pick? Bajie said with a silly smile, Master, let me test you. Each of us took the same amount of money. There are less than 65,438+000 peaches in my basket. If we count three peaches, there are 1 peach left in the end. Do the math. How many did each of us choose? Friar Sand said mysteriously, Master, I will test you, too. If there are four peaches in my basket, there is 1 left in the end. Do the math. How many did each of us choose? Wukong smiled and said, Master, I'll test you, too. If there are five peaches in my basket, there will be 1 in the end. Do the math. How many shall we each choose? Tang Priest quickly said the number of peaches he had picked. Do you know how many peaches they each picked?