my scientific age

Chapter 66 Goldbach Conjecture!

Operation Bernhard, an organized attempt to destroy the British economic system by counterfeiting a large number of sterling banknotes, is a currency war.

After Operation Bernhard, the world's first pound sterling with an anti-counterfeiting identification mark appeared, um, with a metal wire added to the original.

Looking at the six pounds in his hand, Yu Hua sighed to the sky, feeling very melancholy. He had the feeling that he had dragged down the average wealth data of the entire Beiping No. [-] Middle School.

The poorest person in the whole school is not others, but himself.

See, with six pounds on hand, selling a light bulb at a school is like international trade.

Today we only know why the family is poor.

After sorting out the slightly melancholy mood and putting away two precious sterling banknotes, Yu Hua turned his head and silently pondered the sale of portable lighting sources. After some research, he made a decision: "The first week will be delivered to the party first. Three of Jade's are officially sold to the outside world, accepting reservations, and five units will be delivered in the second week, that's all for now, go read.

Remember the basic information of Zhang Wen in the literature class, the original plan remains unchanged, and the hunger marketing strategy is maintained. Now Yu Hua's brain is like a high-performance mobile biological computer. Recording this information does not require pen and paper at all, very safe. , don't worry about leaks.

Now, read a book.

Stepping into the library and going up to the second floor, it was still the same place, but today Lin Wan was not there, Yu Hua glanced at the empty place, and felt a little uncomfortable, and when he noticed his psychological changes, he couldn't help but smile.

Sure enough, it was natural to get used to it. I was used to saying hello to the big boss Lin Wan every day, but it suddenly disappeared today, which is strange.

Shaking his head lightly, Yu Hua walked along the narrow corridor into the bookshelf, and came to the place where he borrowed books according to his memory. He found two high school mathematics books, one called "The Charm of Mathematics", a mathematics book published by an old friend Princeton. The reading material is biased towards basic classes and popular science style. It tells about the development and origin of mathematics, and tells why geometry is still flowing with unparalleled charm.

A "What is a Derivative" is a mathematics book produced by Cambridge University mathematics professor Hardy. Most of it involves related knowledge in high school, and a small part is exposed to calculus. It is biased towards professional knowledge and involves a small part of advanced mathematics.

Yu Hua sat down quietly and looked at the charm of the first mathematics book. The content of the article contained more words than mathematical formulas. First, it started from the origin of mathematics, and mainly described the development process of mathematics in the West.

It is written in the book that there are four periods in the history of mathematics development. The first period is called the period of mathematics formation. The first mathematics was formed in the first century BC and was mainly composed of arithmetic and geometry.

However, in this period, arithmetic has not been separated from geometry and formed a separate branch. Most of mathematics involves understanding natural numbers and simple addition and subtraction operations.

The second period is called the period of elementary mathematics, also known as the period of constant mathematics. The time span is from the sixth century BC to the beginning of the seventeenth century AD. During this period, mathematics developed by leaps and bounds, covering arithmetic, geometry, algebra and other fields. , It is worth mentioning that all the mathematical content born in this period basically belongs to the middle school stage, including rational numbers, equations, real numbers, parallel lines, inequalities and so on.

During this period, the Princeton book called it 'dormant mathematics'.

The third period is the period of variable mathematics. The time span is from the beginning of the seventeenth century to the end of the nineteenth century. The French mathematicians Descartes and Fermat created analytic geometry, which made the development of mathematics reach a new height, and then, Under the battle between Isaac Newton, the 'Messenger of God' and Leibniz, known as the 'Aristotle of the seventeenth century', the most important foundation in the history of mathematics, calculus, was born.

Calculus in the early stage triggered the second mathematical crisis in the history of mathematics. Fortunately, under the crazy remedies of a series of famous historical figures, the mathematical crisis was resolved, and the calculus that had been wandering for more than 100 years finally became stable.

The emergence of calculus has brought the mathematical development of human civilization to an unprecedented height, making a series of mathematical problems simplification, stylization, and formulation. At this time, mathematics began to show its own charm.

The Princeton book calls it 'the process of turning mathematics into a mathematical weapon'.

With calculus, there is so much that can be done.

Modern science separated from philosophy is inseparable from the help of mathematics. Galileo, the father of modern mathematics, has two core concepts: first, use mathematics to quantitatively describe science; second, use experiments to verify science.

This is the role of mathematics. Mathematics has become a logical weapon at the abstract level, helping human civilization to accelerate the understanding of the nature of the world.

In the nineteenth century, also known as the contemporary mathematics period, the development of mathematics was based on set theory as the beginning, and algebra, geometry, and analysis continued to derive profound changes. The dynamic system composed of topological dynamic systems and the functional composed of Hilbert spaces. Analysis, calculus of rigor perfected by Cauchy and Lebesgue integrals.

Princeton calls it a 'brilliant mathematical pearl'. The book also talks about Goldbach's conjecture, four-color conjecture and Fermat's conjecture. Mathematics must be able to be more brilliant and prosperous.

"As expected of Princeton, a book spanning thousands of years of history, from its origin to the present, is compact and fast, making readers instantly interested in learning mathematics." Yu Hua finished reading "The Charm of Mathematics" and put it down gently, Closing my eyes, all the contents of the book appeared in my mind, and then I seemed to have returned to the era of mathematical development, and I couldn't help but feel a longing in my heart.

Mathematical research may seem useless, but in fact, it affects all aspects of life, from small to food, to battleship manufacturing and cannons, and mathematics is not needed anywhere.

With the climax in the history of mathematics and the establishment of calculus, mathematics has completely become the basis of all natural sciences.

interesting.

Really interesting.

However, this Princeton book, which had been hidden in the school library for a long time, made Yu Hua see something different.

That is the Goldbach conjecture at the end.

The four-color theorem and Fermat's last theorem are not in a hurry for the time being. The most familiar and most famous Goldbach conjecture to the Chinese is the existence worthy of attention.

Because, the mathematician who originally proved Goldbach's conjecture, called Chen Jingrun, proved '1966+1' in 2.

It is clearly recorded in "The Charm of Mathematics" that Goldbach's conjecture is only deduced to '5 + 7', '4 + 9', '3+15' and '2+366'. West Proof, published before January.

emmm, a very interesting thing is in front of Yu Hua.

(End of this chapter)