数学符号大全

2025-03-01 03:01:38
推荐回答(2个)
回答(1):

(1)数量符号:如:i,2+i,a,x,自然对数底e,圆周率π。
(2)运算符号:如加号(+),减号(-),乘号(×或·),除号(÷或/),两个集合的并集(∪),交集(∩),根号(√),对数(log,lg,ln),比(:),微分(dx),积分(∫)等。
(3)关系符号:如“=”是等号,“≈”是近似符号,“≠”是不等号,“>”是大于符号,“<”是小于符号,“→”表示变量变化的趋势,“∽”是相似符号,“≌”是全等号,“‖”是平行符号,“⊥”是垂直符号,“∝”是成正比符号,(没有成反比符号,但可以用成正比符号配倒数当作成反比)“∈”是属于符号,“c”或“c下面加一横”是“包含”符号等。
(4)结合符号:如小括号“()”中括号“〔〕”,大括号“{}”横线“—”
(5)性质符号:如正号“+”,负号“-”,绝对值符号“‖”
(6)省略符号:如三角形(△),正弦(sin),余弦(cos),x的函数(f(x)),极限(lim),∵因为,(一个脚站着的,站不住)∴所以,(两个脚站着的,能站住)总和(∑),连乘(∏),从n个元素中每次取出r个元素所有不同的组合数(c(r)(n)),幂(a,ac,aq,x^n),阶乘(!)等。
(7)其他符号:α,β,γ等多个符号

回答(2):

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|








±














&;
§










Γ
Δ
Θ

Ξ
Ο


Φ
Χ
Ψ
Ω
α
β
γ
δ
ε
ζ
η
θ
ι
κ
λ
μ
ν
ξ
ο
π
ρ
σ
τ
υ
φ
χ
ψ
ω





























































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


semicircle
半圆

circle


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


minute


second


number
…号

at
单价

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