A little love story about high school math knowledge (about math confession sentences) 1. On mathematical confession sentences
Go to Baidu Library to check the complete content > Content comes from users: Du Mi Library's confession sentence about mathematics 1: Confession sentence about mathematics Original title: How many words can you understand about the confession of a master of mathematics? Our hearts are a circle, because their eccentricity is always zero.
My yearning for you is a recurring decimal, which is stubborn over and over again. We are parabolas, you are the focus and I am the line of sight. I miss you as much as you think I am.
A zero vector can have many directions, but only one length. Just like me, I can have many friends, but there is only one you, which deserves my protection. Life can be sweet or bitter, but it can't be without you. Just like the denominator, it can be positive or negative, but it can't be meaningless and its value is zero.
With you, my world is infinite, because no real number can express my deep love for you. My feelings for you are like an exponential function based on the natural constant E. No matter how many derivative storms there are, my true feelings will not change.
No matter what random variables are in front of us, no matter how big the variance is in the future, I believe that after the trough, will the peak be far behind? Your life is my field, your thoughts are my corresponding laws, and your smile is definitely a necessary and sufficient condition for my existence here. If your heart is the X axis, then I am a sine function, rotating, receiving and releasing around you.
I bring you surprises and hopes every day, just like every element in an infinite * * *, although inexhaustible, but different. If one day we are on both sides of the earth, it will be close at hand. If we all study hard from now on, the above ideal can be realized.
This is a true proposition. Everything I do is our future auxiliary line, you know? Now you're ignoring me.
2. A little knowledge about mathematics
Small knowledge of mathematics
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The origin of mathematical symbols
Besides counting, mathematics needs a set of mathematical symbols to express the relationship between number and number, number and shape. The invention and use of mathematical symbols are later than numbers, but they are much more numerous. Now there are more than 200 kinds in common use, and there are more than 20 kinds in junior high school math books. They all had an interesting experience.
For example, there used to be several kinds of plus signs, but now the "+"sign is widely used.
+comes from the Latin "et" (meaning "and"). /kloc-in the 6th century, the Italian scientist Nicolo Tartaglia used the initial letter of "più" (meaning "add") to indicate adding, and the grass was "μ" and finally became "+".
The number "-"evolved from the Latin word "minus" (meaning "minus"), abbreviated as m, and then omitted the letter, it became "-".
/kloc-In the 5th century, German mathematician Wei Demei officially determined that "+"was used as a plus sign and "-"was used as a minus sign.
Multipliers have been used for more than a dozen times, and now they are commonly used in two ways. One is "*", which was first proposed by the British mathematician Authaute at 163 1; One is "",which was first created by British mathematician heriott. Leibniz, a German mathematician, thinks that "*" is very similar to Latin letter "X", so he opposes the use of "*". He himself proposed to use "п" to represent multiplication. But this symbol is now applied to the theory of * * *.
/kloc-In the 8th century, American mathematician Audrey decided to use "*" as the multiplication symbol. He thinks "*" is an oblique "+",which is another symbol of increase.
""was originally used as a minus sign and has been popular in continental Europe for a long time. Until 163 1 year, the British mathematician Orkut used ":"to represent division or ratio, while others used "-"(except lines) to represent division. Later, in his book Algebra, the Swiss mathematician Laha officially used "∫" as a division symbol according to the creation of the masses.
/kloc-in the 6th century, the French mathematician Viette used "=" to indicate the difference between two quantities. However, Calder, a professor of mathematics and rhetoric at Oxford University in the United Kingdom, thinks that it is most appropriate to use two parallel and equal straight lines to indicate that two numbers are equal, so the symbol "=" has been used since 1540.
159 1 year, the French mathematician Veda used this symbol extensively in Spirit, and it was gradually accepted by people. /kloc-The symbol "=" was widely used in Leibniz, Germany in the 0/7th century. He also used "∽" to indicate similarity and ""to indicate congruence in geometry.
Greater than sign ">" and less than sign "
3. A short knowledge of mathematics is about 20 to 50 words.
Interesting knowledge of mathematics
Number theory part:
1, there is no maximum prime number. Euclid gave a beautiful and simple proof.
2. Goldbach conjecture: Any even number can be expressed as the sum of two prime numbers. Chen Jingrun's achievement is that any even number can be expressed as the sum of the products of one prime number and no more than two prime numbers.
3. Fermat's last theorem: n power of x+n power of y = n power of z, and n> has no integer solution at 2 places. Euler proved that 3 and 4, 1995 was written by a British mathematician.
Andrew Wiles
certificate
Topology part:
1. The relationship among points, faces and edges of a polyhedron: fixed point+number of faces = number of edges +2, which was proposed by Descartes and proved by Euler, also known as euler theorem.
2. euler theorem's inference: There may be only five regular polyhedrons, namely regular tetrahedron, regular octahedron, regular hexahedron, regular icosahedron and regular dodecahedron.
3. Turn the space upside down, the left-handed object can be changed into the right-handed, and through Klein bottle simulation, a good mental gymnastics,
Excerpted from: /bbs2/ThreadDetailx? id=3 1900
4. Sentences about mathematics
1. Any branch of mathematics, no matter how abstract, will be applied to the real world one day.
Lobachevsky 2. Elementary mathematics is one of the most representative creations of modern thought, which is characterized by the direct connection between theory and practice. Pure mathematics is a magician's real wand.
Novalis IV. This book (Elements of Geometry) is beneficial, which can make the reader superficial and meticulous; Learners make their own rules and make their own smart ideas; Therefore, there is no one in the world who is not learning correctly. -Xu Guangqi 5. Mathematicians are as happy when they derive equations and formulas as when they see statues, beautiful scenery and beautiful tunes.
-Corning Six. When I listen to others explain some math problems, I often find it difficult or even incomprehensible. At this time, I thought, can we simplify the problem? Often finally figured it out, in fact, it is only a 7. The first is mathematics, the second is mathematics and the third is mathematics.
Roentgen 8. Most mathematical creation is the result of intuition, with a little direct perception or quick understanding of facts, which has nothing to do with any lengthy or formal reasoning process. -William Lucas. Half a proof is equal to 0.
-Gaussian 10. It is found that every new group is mathematical in form, because we can't have other guidance. -Darwin 1 1. Non-mathematical induction plays an indispensable role in mathematics learning.
-Shure (I 12. Give me five coefficients and I will draw an elephant; Give me six coefficients and the elephant will wag its tail. -Al Cauchy 13. What gives me the greatest happiness is not knowing knowledge, but learning constantly; Not what you already have, but what you keep getting; Not the height that has been reached, but the constant climbing.
-gauss 14. Observation may lead to discovery, and observation will reveal some laws, patterns or rules. -Paulia wants to adopt. Thank you.
Ask for a math love letter
The first one: y = sqrt [1-(| x |-1) 2] y = arccos (1| x |)-3s qrt stands for the image of the radical number, which is a heart! (At present, the common heart is this shape! Perfect! The second part (Descartes' love letter to his beloved girl): Descartes,/kloc-was born in France in the 7th century and made great contributions to later generations. He was the first person to create the invented coordinates, but he was poor all his life.
Until he was 52 years old, he was still unknown. At that time, the Black Death prevailed in France, and Descartes had to flee France, so he wandered to Sweden as a beggar.
One day, when he was begging in the market, a group of girls passed by. One of them found that his accent was not Swedish. She was very curious about Descartes, so she went up to him and asked him ... where are you from? France "What do you do?" "I am a mathematician." This girl is Christine, 18 years old, and she is a princess. Unlike other girls, she doesn't like literature, but she is keen on mathematics.
When she heard Descartes say his name, she felt quite interested, so she invited Descartes back to the palace. Descartes became her math teacher, and gave her life's research to Christine.
And Christine's math is improving day by day. At that time, Cartesian coordinates were only understood by Descartes. Later, there was a different feeling between them, and there was a noisy love between teachers and students.
The news reached the king's ears and made him quite angry! Descartes was sentenced to death and Christine hanged herself. The king was afraid that his precious daughter would really be unhappy, so he exiled Descartes to France and put Christine under house arrest. As soon as Descartes returned to France, he was infected with the Black Death and lay dying in bed.
Descartes has been writing to Christine in Sweden, but he was intercepted and confiscated by the king. So Christine never received a letter from Descartes ... Descartes sent the letter 13 on his deathbed, shortly after it was sent.
He died. The content of this letter is only a short line ... r = a (1-sin θ). After the king intercepted this letter, he opened it and found that it was no ordinary love story.
Of course, the king couldn't understand this mathematical formula, so he called all the scientists in the city to study it, but no one could understand its meaning. The king thought ... Descartes was dying anyway, and the princess was depressed when she was under house arrest, so he gave the letter to Christine.
When Christine received this letter, she was ecstatic. She is glad that her lover still misses her. She immediately began to study the secret of this line.
It didn't take long for it to come out, using rectangular coordinates (note: it is actually a polar coordinate system). When θ = 0, R = A (1-0) = A ... When θ = 90, R = A (1-kloc-0/) = Soon after, the king also died and Christine succeeded to the throne. Immediately after she ascended the throne, she sent people to look for Descartes everywhere in Europe, but unfortunately … people died, and talented people and beautiful women failed to have a fairy tale ending. Legend has it that the unique love letter 13 is still in the Descartes Memorial Hall in Europe ... The formula in the letter is the "love code" between Descartes and Christine.
Polar coordinates (this is actually not like heart = =) Come on, boy! Look at you.