常用数学符号读法大全
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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
Γ δ
deta delta 德耳塔
Δ ε epsilon epsilon
艾普西隆
Ε δ zeta
zeta 截塔
Ζ ε
eta eta 艾塔
Θ
ζ theta ζita 西塔
Η η iota
iota 约塔
Θ θ
kappa kappa 卡帕
ⅸ ι lambda lambda
兰姆达
Μ κ mu
miu 缪
Ν λ nu
niu 纽
Ξ μ
xi ksi 可塞
Ο
ν omicron omikron
奥密可戎
∏ π pi
pai 派
Ρ ξ
rho rou 柔
∑ ζ sigma sigma
西格马
Τ η tau
tau 套
Υ υ
upsilon jupsilon 衣普西隆
Φ θ phi
fai 斐
Φ χ
chi khai 喜
Χ ψ psi psai
普西
Ψ ω omega
omiga 欧米伽
常用数学符号大全
1 几何符号
ⅷ ⅶ ↋ ↆ ↄ △
2 代数符号
ⅴ ⅸ ⅹ ～ ⅼ ↅ
ↇ ↈ Ↄ ⅵ ↀ
3运算符号
× ÷ ⅳ ±
4集合符号
ⅻ ⅺ ⅰ
5特殊符号
ⅲ
π（圆周率）
6推理符号
|a| ↂ △
ⅶ ⅺ ⅻ ↅ ↆ ± ↈ
ↇ ⅰ Ⅼ
Ⅽ Ⅾ Ⅿ ↖ ↗ ↘ ↙ ⅷ ⅸ
ⅹ
&; §
← ↑ → ↓ ↔ ↕
↖ ↗
Γ Δ Θ Λ Ξ Ο Π
Σ Φ Χ
Ψ Ω
α β γ
δ ε δ ε ζ η θ ι
κ
λ
μ ν π ξ ζ η υ θ
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
ⅰ ⅱ ⅲ ↚ ⅳ ⅴ ⅵ
↛
ⅶ ↜ ⅷ ⅸ ⅹ ⅺ ⅻ ⅼ ⅽ
ⅾ ⅿ ↀ ↁ ↂ Ↄ ↄ ↝ ↅ
ↆ ↇ ↈ ↞
↟ ↉ ↊ ⊕ ↋
↠ ℃
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
ↅ is not equal to
不等于号
ↆ is equivalent to 全等于号
ↄ is
approximately equal to 约等于
Ↄ is
approximately equal to 约等于号
＜ is less than
小于号
＞ is more than 大于号
ↇ is less
than or equal to 小于或等于
ↈ is more than or
equal to 大于或等于
％ per cent 百分之…
ⅵ
infinity 无限大号
ⅳ (square) root 平方根
X
squared X的平方
X cubed X的立方
ⅿ
since; because 因为
ⅾ hence 所以
ⅶ angle 角
semicircle 半圆
↋ circle 圆
○
circumference 圆周
△ triangle 三角形
perpendicular to 垂直于
ⅻ intersection of 并，合集
ⅺ union of 交，通集
ⅼ the integral of
…的积分
ⅲ (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
signed 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.
retiree
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.
solving of 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
'independent candidate' as it's not
recognized by law.
guidelines laid out by the
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.
is
so much unfairness and many choices in life are
decided by the others,
an 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.
confident, 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.