After reading "Extremely Fatal Mathematics" (1) and the book "Extremely Fatal Mathematics", I found that mathematics is really wonderful!
This book brings us into an interesting mathematical world with interesting cartoons, detailed words and wonderful stories. For example, in "Interesting Square", geometry teacher Professor Fendich told us that there are many kinds of dominoes, which can be put together into many pieces. For another example, "pond problem", buy guardrails, floor tiles and high-quality pond water. It tells us that these three problems need different conditions to buy materials suitable for this pool.
Favorite articles about the three-dimensional world. It says that people in the one-dimensional world can see in the two-dimensional world, and people in the three-dimensional world can see in the two-dimensional world. Similarly, there are people in life who can see our four-dimensional world (people in the three-dimensional world)! I find it incredible!
Mathematics is wonderful, and some of its secrets may not be known to us humans. Even so, this book has brought me some mathematical mysteries. I am very happy, because it makes me feel the magic charm of mathematics.
Mathematics is amazing!
Reflections on reading "Extremely Fatal Mathematics" (2) Last summer vacation, I also read the book "The Big World of Mathematics", which mainly wrote about the problems that are easy to make mistakes in mathematics, people who learn mathematics well, and some examination questions. What impressed me most was the story of Faraday, a scientist. Their family can only eat one loaf of bread a week. Faraday measured a length of 42 cm.
Faraday thought, this bread is distributed in 7 days, that is, eating 42÷7=6 cm long bread a day. Later, he found white paper, drew a 6 cm long line segment on the white paper, and drew 13 equidistant lines on the line segment. Take one tablet in the morning and one tablet in the evening. I just finished eating it in a week.
At that time, I was still thinking why not draw the 14 line? On second thought, ah! If you draw 14 lines and cut them with a knife, it is 15 pieces, which does not meet the requirement of just eating them in one week.
Later, when the school math teacher talked about this knowledge point, I immediately thought of this story and understood the truth.
In a word, I read the book Mathematical World and gained a lot of knowledge!
Books are the ladder of human progress. Through reading, we have gained knowledge and learned a lot about being a man. Let's walk into the ocean of books together, broaden our horizons and feel the fun of reading!
This summer vacation, I bought a very interesting book called Extremely Fatal Mathematics, which told us a lot about mathematics.
It's interesting to talk about the one-dimensional, two-dimensional and three-dimensional world. There are many interesting stories in this book, such as the number of mirrors and interesting squares. I recommend you to read this book. After reading it, your math scores will definitely improve. Let me tell you a story in this book.
Have you ever heard of mirror digital? It can also be called "square structure of numbers", which refers to numbers in the same order and in the reverse order, such as 13 1 or 7227 or 2 1878 12. This figure is very strange. Whether you write backwards or forwards, you write the same number. Besides, the way you got this number is also very strange.
You can have a try:
1, take a two-digit number and write it on paper.
2. Write down this number after its position has been exchanged.
Add these two figures together.
4. Then reverse the position of this number and write it down.
5. Add these two figures together.
6, go on, and finally you will get a mirror number.
For example, choose 78, then use 7887= 165, then use 1656 1 = 726, then use 726627= 1353, and continue to use13535438+0 = 40. The number 4884 is the number of mirrors we need to find.