In 46 BC, Julius Caesar, commander-in-chief of Rome, specified the calendar. Because he was born in July, in order to show his greatness, he decided to change July to "Julian month", and all single months were stipulated as 3 1 day, and bimonthly was 30 days. In this way, there is one more day in a year. February was the month when prisoners were executed in ancient Rome. In order to reduce the number of people executed, 1 day was reduced in February to 29 days.
Digital kingdom 2
When Cuomo was a middle school teacher, one day in class, he forgot the product of seven plus nine when calculating on the blackboard! When he hesitated for a long time, a classmate said the answer was 6 1, so he wrote it down accordingly.
How do I know that another voice said he should write 69. Of course, Cuomo knew there was only one correct answer. As for 6 1, 69 or other figures, he can't decide. So he began to analyze, saying loudly that 6 1 is a prime number, not a product, 65 is a multiple of 5, and 67 is also a prime number. 69 seems too big, so the answer is 63!
Digital kingdom 3
Hua is mainly engaged in the research of analytic number theory, matrix geometry, canonical group, automorphic function theory, multiple complex variable function theory, partial differential equation, high-dimensional numerical integration and other fields; It also solves the difficult problem of estimating Gaussian complete triangular sum, the improvement of Willing and Tali problems, the proof of the basic theorem of one-dimensional projective geometry, and the application research of modern number theory methods. It is listed as one of the 88 greatest mathematicians in the world in the Chicago Museum of Science and Technology. The international achievements in mathematical research include Fahrenheit theorem, Fahrenheit inequality and Hua Wang method.
Hua left ten masterpieces in his life, eight of which were translated and published abroad, and were included in the classic works of mathematics in the 20th century. In addition, there are more than 150 academic papers and popular science works, such as the commentary supplement of the optimization method and the commentary supplement of the overall planning method. What are the Selected Works of Huapopularization of Science?
Digital kingdom 4
In the following addition formula, each Chinese character represents a number, and different Chinese characters represent different numbers. What does this formula look like?
The idiom says, think twice before you act. There are three ideas in this formula. Let's think about what these ideas mean first. Considering the addition of husband and wife, it is possible to enter 1 or not to carry to hundreds, and get thinking =58 or thinking =08 respectively.
If thinking is equal to 08, then it is deduced from the addition of hundreds that it is equal to 8, and the meaning of going and taking the exam is 8, which does not meet the requirements of the question, because different Chinese characters represent different numbers. So it can only be thinking =58.
It follows that =7.
So the addend is 75858, and the formula is 43758+75858 =119616.