This couplet was written by Emperor Qianlong of the Qing Dynasty, implying the age of an old man, and this number is also implied in the couplet, which is the couplet above.
The above formula is 2× 60+3× 7 = 14 1, and the following formula is 2× 70+1=14/.
(2) The top three Wei. Chapter IX Pythagorean Line.
The first part of this book was written in 1953 when the mathematician Hua went abroad with China Academy of Sciences. The head of the book is Qian Sanqiang, and its members include more than ten people, including Professor Zhao Jiuzhang, an atmospheric physicist. In order to increase the fun of traveling, Hua went out to find the first part of a book and asked for a suitable one. For an instant, everyone shook their heads and couldn't say it right. He must finish the second part of the book, "Nine Chapters of Pythagoras". This book is second-hand. "Nine Chapters" refers not only to Zhao Jiuzhang, but also to China's ancient mathematical masterpiece "Nine Chapters Arithmetic". This book records the Pythagorean theorem first discovered by mathematicians in China. All the figures are relative, balanced and corresponding, connected from ancient times to modern times, and the total score is comprehensive.
3) A couple somewhere, the man is an accountant and the woman is a doctor. On the wedding day, someone sent a pair of He Lian:
Incorrect coincidence number in accounting composite number test: doctors prescribe drugs only after they know the root cause of the disease.
Embedding mathematical terms such as "composite number" and "square root" is seamless.
(4) A pair of math teachers in a certain city finally got married with Qin Jin after many twists and turns. Colleagues wrote a pair of couplets to congratulate each other and said:
Love is like a geometric curve; Happiness is like a decimal cycle.
"Geometric curve" vividly expresses the ups and downs of love between math teachers; "Decimal cycle" is an endless number, used to congratulate the happiness of newly married couples, which is really a stroke of genius.