Gauss was interested in mathematics when he was in elementary school. One day, Mr. Baxter, the math teacher, was a little unhappy. As soon as he entered the classroom, he said to his classmates with a straight face, "Today's class is calculated by yourself. Whoever finishes the calculation first will go home for dinner first. " With that, he wrote such a topic on the blackboard:

1+2+3+……+ 100=?

The students immediately took out their exercise books and bowed their heads and calculated carefully. Burt sat reading a novel. Who knows, he just finished reading a page when little Gauss raised his hand and reported to the teacher:

"Teacher, I have finished this problem."

"finished?" Bert waved angrily. "You must be so quick. Do it again! "

"Can't be wrong. I checked and checked. " Gauss said confidently. "Bert went to Gauss's seat and picked up his exercise book. The answer is "5050", which is obviously true.

"How do you calculate?" Bert asked in some surprise.

Gauss answered matter-of-factly: "I found that the sum of the two numbers in this question is 10 1, and the total is * * * 5010/,so the answer should be: 50×1= 5050."

"Great!" Baxter patted the table excitedly, and then loudly said to all the students, "I didn't expect that there would be a math prodigy among you!" " "

Since then, Mr Burt has completely changed his views on rural children, especially Gauss. Later, under the careful training of Mr. Bertrand, Gauss became more and more interested in mathematics and gained more and more accomplishments. /kloc-at the age of 0/7, he discovered the quadratic reciprocity law in number theory.

Klein bottle

1882, the famous mathematician Felix Klein discovered the famous "bottle" named after him: Klein bottle. Klein bottles are like bottles, but they have no bottom. Its bottleneck is elongated, then it seems to pass through the bottle wall, and finally the bottleneck is connected with the bottom ring. Interestingly, if you cut the Klein bottle along its symmetry line, you will get two Mobius rings.

golden section

The golden section was put forward by Pythagoras.

Once, Pythagoras passed by the blacksmith's workshop and was fascinated by the tinkling of iron. In order to reveal the secrets of these sounds, he measured the size of the hammer and anvil and found that there was a very harmonious proportional relationship between them. After returning home, he took out a thread and divided it into two sections. After repeated comparisons, he finally decided that the ratio of 1:0.6 18 was the most beautiful. This ratio is recognized as the most aesthetic ratio, so it is called the golden section.