2. "Mathematics is the queen of natural science", which is the basic skill of scientific research. Mathematics is magical and can express the real world with elegant formulas.
3. Physics, that is, everything is rational, refers to the internal laws of things and the truth of things. It is a natural science that studies the structure, interaction and movement of matter, based on experiments and observations. Show the truth of the scientific community. All kinds of relations in physics can be deduced and expressed by mathematical formulas.
4. Einstein's mass-energy equation perfectly explains the harmonious relationship between mathematics and physics:
That is, energy = the square of mass/speed of light, which reveals the relationship between material mass and energy.
Where e is energy, m is proton plus neutron minus the mass of the nucleus (due to mass defect, the mass of the nucleus is always less than the sum of the mass of protons and neutrons that make up the nucleus), and c is the speed of light.
5. A lot of mathematical knowledge will be used when searching with search engines:
(1) Judge whether a web page is the desired search result, and judge whether it is true or false by Boolean algebra;
(2) Search all related web pages and use traversal in graph theory;
(3) ranking the retrieved web pages by using the two-dimensional matrix in linear algebra and convergence proof;
(4) Rank the promotion links of search engines by index model.
6. Pythagoras unified nature and harmony in numbers, which itself is the order of the world, and everything has numbers.
(1) All true factors such as 220 1, 2,4,5, 10,1,20,22,44,55,1/kloc-. The sum of all true factors of 284 1, 2, 4, 7 1, 142 is exactly 220. This is the intimacy number.
② Ancient Italy used 6 as a symbol of "happy marriage". 6 is equal to the sum of all its true factors 1, 2, 3 and the product of all its true factors 1, 2, 3.
(3) The sum of the squares of the side lengths of two right angles (hook and chord) of a right triangle is equal to the square of the side length of the hypotenuse (chord). Let the two right angles of a right triangle be a & ampB and the hypotenuse be C, then the formula of Pythagorean theorem is A&; # 178; +b & amp； # 178; = c & amp# 178; .
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