How to read mathematical symbols How to read "δ" How to read with a small circle on the U head Please use homophonic words

Alpha (alpha)
Beta (beta)
Gamma (gamma)
δ (delta)
Epsilon (epsilon)
Zeta (truncated tower)
η (ETA) θ (Sita) ι Yota) κ (kappa) λ (lambda) μ (Miyu) ν (NYU) ξ (measurable) ο (Omicron) π (PIE) ρ (if) σ (sigma) τ (tau) ν (English or Latin letter) φ (FI) χ (HI) ψ (Pusi)) ω (omega)

What is the usage and pronunciation of mathematical symbols?

The phonetic table of Greek alphabet and its meaning the international phonetic alphabet meaning alpha /'alfa / angle, coefficient, angular acceleration beta /'beit & # 601; / magnetic flux coefficient, angle, coefficient Γ gamma /'g & aelig; M & # 601; / conductivity coefficient, angle, specific heat capacity ratio Δ δ delt

The pronunciation of line words is the group of words of each pronunciation

Radical: line, stroke outside: 0, Total strokes: 6 5 strokes 86: tfhh 5 strokes 98: tgsh Cangjie: hommn stroke order No.: 332112, corner No.: 21221 UniCode:CJK Unified basic meaning of Chinese character U + 884c ① (2) some business organizations: banks ｜ commercial banks. (3) occupation category: business ｜ business rules ｜ peers ｜ all walks of life. (4) refers to the knowledge and experience of a certain industry: expert ｜ expert ｜ knowledgeable. ⑤ brothers and sisters in the order of age: I rank second at home, He is an expert in tree planting and knows the characteristics of all kinds of trees like the palm of his hand, The catering industry should pay special attention to hygiene and prevent diseases from entering by mouth. More information: Xing Ming (pictograph. Original meaning: Road) has the same original meaning as Xing, Dao also. There are dead people in Shuowen line. Follow the micro line in Shi, Xiaoya, Xiaobian; July is another example: walking reed (roadside reed); walking Qian (Road); walking God (Road God); journey (journey); Walking Street (Road) in straight line, in horizontal line, Chen line around, forbid my division and brigade. - - "poetry ﹣ Da Ya ﹣ Chang Wu" Ling Yu Zhen Xi Xi Xi Yu Xing. - "songs of Chu ﹣ Jiu Ge ﹣ Guo Shang" serve reading, five lines at the same time Chen Sheng and Wu Guang of the army are all in charge of the team of Zuo Zhuan, the 11th year of Yin Gong. The first line of the line of historical records, Chen sheshi family is in the order of brothers and sisters, (4) some shops or business organizations: Consignment ～. Agricultural Bank ～. 5) quantifiers. Line: write two words. Plant three trees. See x í ng. Line x í ng. Walk: walk. Road. Army. 2) related to travel: dress. Li. She. 3) do, work, activity, action: thing. For. Action. Medicine. 4) quality, morality: will be employed. 5) can: do this. 5) can: she really ~. 8) circulate, Delivery: books, newspapers and periodicals, Temporary: business, camp, music and ancient poetry: Changgan ～. Military chariot ～. Traveler: a kind of name for Buddhist monks who practice Buddhism. ① exercising state power: government organs. ② related to administrative affairs: political personnel. Administrative funds. 3 table affirmation. Xing h é ng 1. Strong appearance. See "Xing Xing". 2. See "Shu Xing Zi". Xing h é ng (1) all the methods of "Li", "Chang" and "Ping" can be called "Xing" in the ancient genealogy. (2) it can be used together with walking and playing. For example, a chess move can be called "Xing" in a certain road or position

If a primitive function of F (x) is LNX, find f '(x)

A primitive function of F (x) is LNX
So f (x) = (LNX) '= 1 / x = x ^ (- 1)
So f '(x) = - 1 * x ^ (- 2) = - 1 / X & sup2;

There is 20 cubic meters of oxygen in 100 cubic meters of air, and the proportion of oxygen in the air is (). The quantitative formula I use is（
Answer the question in brackets

20% 20/100=20%

If for any nonzero rational number a, B defines the operation x as follows: AXB = ba-1, then (- 4) x3x (- 2) =___ ．

According to the meaning: (- 4) X3 = 3-4-1 = - 74, then calculate (- 74) x (- 2) = - 2 - & nbsp; 74-1 = - 2 × (- 47) - 1 = 87-1 = 17

X ^ 2 + y ^ 2 = a ^ 2, y ^ 2 + Z ^ 2 = a ^ 2 triple integral volume

X ^ 2 + y ^ 2 = a ^ 2, y ^ 2 + Z ^ 2 = the volume enclosed by a ^ 2, considering the symmetry, each trigram limit volume is equal, as long as the first trigram limit volume is calculated and multiplied by 8, the integral area Ω, in the zoy plane projection is 1 / 4 circle, 0 ≤ y ≤ a, 0 ≤ Z ≤ √ (a ^ 2-y ^ 2), 0 ≤ x ≤ √ (a ^ 2-y ^ 2), that is, the plane with the lower limit of x = 0 (YOZ plane)

Apart from the sun, the nearest star to the earth is more than four light-years away

Apart from the sun, the nearest star to the earth is the neighbor star, 4.22 light-years away from the earth

What are the sparse ratio and dense ratio of Pi? Which mathematician in ancient China worked out these two values first?

Zu Chongzhi, a famous mathematician in the northern and Southern Dynasties of China, has made two important achievements related to PI. First, he calculated pi between 3.1415926 and 3.1415927. Second, he expressed PI approximately with two fractions 22 / 7 and 355 / 113

∫∫ (x + y) DXDY, where D is a plane region bounded by a straight line y = x, x = 1, and X axis

Pre product X
∫∫(x+y)dxdy
=∫[0→1]dy∫[0→y](x+y)dx
=∫[0→1] [(1/2)x²+xy] |[0→y] dy
=∫[0→1] (3/2)y² dy
=(1/2)y³ |[0→1]
=1/2

How to read mathematical symbols How to read "δ" How to read with a small circle on the U head Please use homophonic words