常用高等数学符号读法大全.
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常用数学符号读法大全
大写 小写 英文注音
国际音标注音 中文注音
Α α
alpha alfa 阿耳法
Β β beta beta
贝塔
Γ γ gamma
gamma 伽马
Δ
Ε
Ζ
Η
Θ
Ι
Κ
∧
Μ
Ν ν nu
niu
Ξ ξ xi
ksi
Ο ο omicron
omikron
∏ π pi
pai
Ρ ρ rho
rou
∑ σ sigma
sigma
Τ τ
tau tau
Υ
υ upsilon jupsilon
Φ φ phi
fai
Χ χ chi
khai
Ψ ψ
Ω
ω omega omiga
δ deta delta
ε epsilon epsilon
ζ zeta zeta
η eta eta
θ theta θita
ι iota iota
κ kappa kappa
λ lambda lambda
μ mu miu
纽
可塞
奥密可戎
派
柔
西格马
套
衣普西隆
斐
喜
普西
欧米伽
德耳塔
艾普西隆
截塔
艾塔
西塔
约塔
卡帕
兰姆达
缪
psi
psai
常用数学符号大全
1 几何符号
⊥ ∥ ∠ ⌒ ⊙ ≡ ≌ △
2 代数符号
∝ ∧ ∨ ～ ∫
∶
3运算符号
× ÷ √ ±
4集合符号
∪ ∩ ∈
5特殊符号
∑ π（圆周率）
6推理符号
|a| ⊥ ∽ △
≡ ±
≥ ≤
↑ → ↓ ↖
∧ ∨
&; §
① ② ③ ④
Γ Δ Θ
Λ
Φ Χ Ψ
α β γ δ
ι κ λ μ
≠
∠
∈
↗
⑤ ⑥
Ξ
Ω
ε
ν
≥ ≈ ∞
∩ ∪ ≠
←
↘ ↙ ∥
⑦ ⑧ ⑨ ⑩
Ο Π
Σ
ζ η θ
≤
ξ
ο π ρ σ τ υ φ
χ ψ ω
Ⅰ Ⅱ Ⅲ Ⅳ Ⅴ Ⅵ Ⅶ Ⅷ Ⅸ Ⅹ Ⅺ Ⅻ
ⅰ ⅱ ⅲ ⅳ ⅴ ⅵ ⅶ
ⅷ ⅸ ⅹ
∈ ∏ ∑ ∕ √ ∝ ∞ ∟
∠
∣ ∥ ∧ ∨ ∩ ∪ ∫ ∮
∴ ∵ ∶
∷ ∽ ≈ ≌ ≒ ≠
≥ ≦ ≧ ≮ ≯
⊕ ⊙ ⊥
⊿ ⌒ ℃
指数0123：o123
上述符号所表示的意义和读法（中英文参照）
＋ plus 加号；正号
－ minus 减号；负号
± plus or minus 正负号
× is multiplied by 乘号
÷ is divided by
除号
＝ is equal to 等于号
≠ is not equal
to 不等于号
≡ is equivalent to 全等于号
≌ is
approximately equal to 约等于
≈ is
approximately equal to 约等于号
＜ is less than
小于号
＞ is more than 大于号
≡ ≤
≤ is less than or equal to
小于或等于
≥ is more than or equal to 大于或等于
％ per cent 百分之…
∞ infinity 无限大号
√
(square root 平方根
X squared X的平方
X
cubed X的立方
∵ since; because 因为
∴ hence
所以
∠ angle 角
⌒ semicircle 半圆
⊙
circle 圆
○ circumference 圆周
△
triangle 三角形
⊥ perpendicular to 垂直于
∪
intersection of 并，合集
∩ union of 交，通集
∫ the integral of …的积分
∑ (sigma summation
of 总和
° degree 度
′ minute 分
〃 second 秒
＃ number …号
＠ at 单价
CNN -- Kezai started receiving
professional tennis coaching at the age of eight.
Since then his
father has worked hard to cover
his training costs.
Two years on and it all
seems to have paid off. In June, a local Chengdu
company reached out to
Li Chengpeng, Kezai's
father, with an offer to sponsor Kezai.
Soon
after, a professional photographer took pictures
of Kezai and his father for advertisements.
But the family's happiness was short lived.
The company withdrew the sponsorship.
Though
he says he was never given an explanation, Kezai's
father believes it was because of his
political activity. The company could not be
reached for comment.
As a controversial
blogger and writer, Li announced his plan to run
for office as an independent
candidate for
China's National People's Congress of Wuhou
District, a legislative body at the local
level in Sichuan province.
campaign
statement on his microblog, where he has more than
three million regular followers.
Through the
power of social media, Li's original message was
forwarded more than 3,000 times
within a few
hours on micro-blogging site Sina Weibo, a popular
twitter-like service.
But such campaigns are
rare in China.
The Chinese do not choose their
own president or premier because all government
officials are
pre-decided.
However,
elections are held on the local level, with all
candidates approved by the party
beforehand.
China's electoral law stipulates that every
Chinese citizen over 18 has the right to vote and
run in
local elections. Those, like Li
Chengpeng, seeking to become candidates for county
or township
legislatures must first register
and secure confirmation of their candidacy. They
must then be
nominated as
support of at
least 10 registered voters in their constituency.
In practice, the government can rule
candidates or any of their supporters unqualified
and refuse
to put them on the ballot, which
critics say leaves ample opportunity for
manipulation of the
results.
in
Beijing said when she was asked to vote for the
People's Congress district's last election.
In
recent months, an unprecedented number of Chinese
citizens have declared themselves as
independent candidates, according to Li Fan,
founder of the World and China Institute that
promotes democracy at the local levels.
He
said many candidates have grievances with the
local government and feel they cannot get
their voices out.
the problem,
candidates, which is obviously
not the case.
Some believe there are concerns
among the central government as well. On June 8,
state-run
media Xinhua quoted the head of the
Commission for Legislative Affairs of the National
People's
Congress Standing Committee as saying
that
candidate' as it's not recognized by
law.
government.
But some do manage to meet
the guidelines and run under the banner of an
independent. The
history of China's
independent candidates dates back to 1998, when
Yao Lifa, a teacher in Hubei
Province, became
the first self-described independent candidate
elected to the local congress.
He lost out
when attempting a bid for a second term in 2003.
With the government in control of the media
and potential candidates subject to government
approval, many question whether a truly
independent candidate can win. Li Fan says more
than
100 people -- many using the internet --
have declared themselves as candidates for
upcoming
elections for people's congresses
across the country.
people leading the
wave, but with their appeals, a lot more people
will stand out to join in the
election. They
are the future.
No matter what the chances are
for Li Chengpeng, he says he is determined.
so
much unfairness and many choices in life are
decided by the others,
interview with CNN.
To achieve his goal, Li Chengpeng has visited
more than 100 residents in his constituency,
listening to their appeals to work out his
campaign plan, trying to secure the government-
required
support from 10 registered voters. He
also continues to speak out on his blog.
Li
Chengpeng is not sure whether his name will appear
on the ballot in September, when the
election
process officially begins, but he tries to be
optimistic.
how can I convince my
supporters?
Li Chengpeng is not so confident
about securing another tennis sponsorship for his
son, if his
political activities indeed caused
him to lose the first one. He says he plans to
fight on as an
independent -- and he has his
son's support.