-Russell (British philosopher, mathematical logician, the main founder of analysis, the advocate and organizer of the world peace movement. )
2. Being good at "retreating", retreating enough and retreating to the original place without losing its importance is a trick to learn mathematics well.
-Hua
3. Mathematics is a tool especially suitable for dealing with any abstract concept, and its power in this field is infinite. For this reason, a book about emerging physics, as long as it is not a pure experimental description, must be a math book in essence. -Dirac
Mathematics is the key to science and the beauty of the universe.
Kepler (German astronomer and optician)
5. Mathematics has two sides. On the one hand, it is a strict science of Euclid. From this perspective, mathematics is a systematic deductive science. On the other hand, mathematics in the process of creation looks like an experimental inductive science.
-Paulia (mathematician and math educator)
6. The same is true of "difficulty". Facing the cliffs, you can't see a crack in a hundred years, but you can cut it inch by inch and foot by foot with an axe. If you keep accumulating, a leap will come and a breakthrough will follow. -Hua (a world-famous mathematician, the founder and pioneer of China's research in analytic number theory, matrix geometry, canonical group and self-safety function theory. )
7. Think, keep thinking, wait for the dawn, and gradually see the light. If I have contributed to the world, it is not because of anything else, but because of my hard work and persistent thinking. -Newton (British mathematician, astronomer and physicist)
Interesting math science tips are as follows:
Arabic numerals
Arabic numerals were invented by ancient Indians and later spread to Arabia and Europe. Europeans mistakenly thought it was invented by Arabs, so they called it "Arabic numerals". Because it has been circulated for many years, people call it Yi, so people still mistakenly believe that these numerical symbols invented by ancient Indians are called Arabic numerals.
multiplication table
Jiujiuge is the multiplication formula we use now. As early as the Spring and Autumn Period and the Warring States Period BC, Jiujiu songs have been widely used by people. In many works at that time, there were records about Jiujiu songs. The original 99 songs started from "99.8 1" to "22.24", with 36 sentences. Because it started with "998 1", it was named 99 Song.
The expansion of Jiujiu Song to "One for One" was between the 5th century and10th century. It was in the 13 and 14 centuries that the order of Jiujiu songs became the same as it is now, from "one for one" to "9981". At present, there are two kinds of multiplication formulas used in China. One is a 45-sentence formula, usually called "Xiao Jiujiu"; There is also a sentence 8 1, which is usually called "Big Uncle Nine".