Symbol
|
Symbol Name
|
Symbol
|
Symbol Name
| |
=
|
equals sign
|
|
|
perpendicular
| |
≠
|
not equal sign
|
||
|
parallel
| |
>
|
strict inequality
|
≅
|
congruent to
| |
<
|
strict inequality
|
~
|
similarity
| |
≥
|
inequality
|
Δ
|
triangle
| |
≤
|
inequality
|
|x-y|
|
distance
| |
( )
|
parentheses
|
π
|
pi constant
|
[ ]
|
brackets
|
rad
|
radians
| |
+
|
plus sign
|
grad
|
grads
| |
−
|
minus sign
|
x
|
x variable
| |
±
|
plus - minus
|
≡
|
equivalence
| |
∓
|
minus - plus
|
≜
|
equal by definition
| |
*
|
asterisk
|
:=
|
equal by definition
| |
×
|
times sign
|
~
|
approximately equal
| |
∙
|
multiplication dot
|
≈
|
approximately equal
| |
÷
|
division sign / obelus
|
∝
|
proportional to
| |
/
|
division slash
|
∞
|
lemniscate
| |
–
|
horizontal line
|
≪
|
much less than
| |
Mod
|
modulo
|
≫
|
much greater than
| |
.
|
period
|
( )
|
parentheses
| |
ab
|
power
|
[ ]
|
brackets
| |
a^b
|
caret
|
{ }
|
braces
| |
√a
|
square root
|
x!
|
exclamation mark
| |
3√a
|
cube root
|
| x |
|
single vertical bar
| |
4√a
|
fourth root
|
f (x)
|
function of x
| |
n√a
|
n-th root (radical)
|
(f ∘g)
|
function composition
| |
%
|
percent
|
(a,b)
|
open interval
| |
‰
|
per-mille
|
[a,b]
|
closed interval
| |
ppm
|
per-million
|
∆
|
delta
| |
ppb
|
per-billion
|
∆
|
discriminant
| |
ppt
|
per-trillion
|
∑
|
sigma
| |
∠
|
angle
|
∑∑
|
sigma
| |
∟
|
right angle
|
∏
|
capital pi
| |
º
|
degree
|
E
|
e constant / Euler's number
| |
´
|
arcminute
|
Γ
|
Euler-Mascheroni constant
| |
´´
|
arcsecond
|
Φ
|
golden ratio
| |
AB
|
line segment
|
Π
|
pi constant
| |
∙
|
dot
|
Q2
|
median / second quartile
| |
×
|
cross
|
Q3
|
upper / third quartile
| |
A⊗B
|
tensor product
|
X
|
sample mean
| |
[ ]
|
brackets
|
S 2
|
sample variance
| |
( )
|
parentheses
|
S
|
sample standard deviation
| |
| A |
|
determinant
|
zx
|
standard score
| |
det(A)
|
determinant
|
X ~
|
distribution of X
| |
|| x ||
|
double vertical bars
|
N(μ,σ2)
|
normal distribution
| |
A T
|
transpose
|
U(a,b)
|
uniform distribution
| |
A †
|
Hermitian matrix
|
exp(λ)
|
exponential distribution
| |
A *
|
Hermitian matrix
|
gamma(c, λ)
|
gamma distribution
| |
A -1
|
inverse matrix
|
Χ 2(k)
|
chi-square distribution
| |
Rank(A)
|
matrix rank
|
F (k1, k2)
|
F distribution
| |
dim(U)
|
dimension
|
Bin(n,p)
|
binomial distribution
| |
P(A)
|
probability function
|
Poisson(λ)
|
Poisson distribution
| |
P(A ∩ B)
|
probability of events intersection
|
Geom(p)
|
geometric distribution
| |
P(A ∪ B)
|
probability of events union
|
HG(N,K,n)
|
hyper-geometric distribution
| |
P(A | B)
|
conditional probability function
|
Bern(p)
|
Bernoulli distribution
| |
F (x)
|
probability density function (pdf)
|
N!
|
Factorial
| |
F(x)
|
Cumulative distribution function (cdf)
|
nPk
|
permutation
| |
Μ
|
population mean
|
{ }
|
Set
| |
E(X)
|
Expectation value
|
A ∩ B
|
intersection
| |
E(X | Y)
|
conditional expectation
|
A ∪ B
|
union
| |
var(X)
|
variance
|
A ⊆ B
|
subset
| |
Σ2
|
variance
|
A ⊂ B
|
proper subset / strict subset
| |
std(X)
|
standard deviation
|
A ⊄ B
|
not subset
| |
σX
|
standard deviation
|
A ⊇ B
|
superset
| |
median
|
A ⊃ B
|
proper superset / strict superset
| ||
cov(X,Y)
|
covariance
|
A ⊅ B
|
not superset
| |
corr(X,Y)
|
correlation
|
2A
|
power set
| |
ρX,Y
|
correlation
|
A = B
|
equality
| |
∑
|
summation
|
Ac
|
complement
| |
∑∑
|
double summation
|
A \ B
|
relative complement
| |
Mo
|
mode
|
A - B
|
relative complement
| |
MR
|
mid-range
|
A ∆ B
|
symmetric difference
| |
Md
|
sample median
|
A ⊖ B
|
symmetric difference
| |
Q1
|
lower / first quartile
|
a∈A
|
element of
| |
x∉A
|
not element of
|
∰
|
closed volume integral
| |
(a,b)
|
ordered pair
|
i
|
imaginary unit
| |
A×B
|
cartesian product
|
Z*
|
complex conjugate
| |
|A|
|
cardinality
|
z
|
complex conjugate
| |
#A
|
cardinality
|
∇
|
nabla / del
| |
Ø
|
empty set
|
x * y
|
convolution
| |
·
|
and
|
δ
|
delta function
| |
^
|
caret / circumflex
|
∞
|
lemniscate
| |
&
|
ampersand
|
α
|
Alpha
| |
+
|
plus
|
β
|
Beta
| |
∨
|
reversed caret
|
γ
|
Gamma
| |
|
|
vertical line
|
δ
|
Delta
| |
x'
|
single quote
|
ε
|
Epsilon
| |
x
|
bar
|
ζ
|
Zeta
| |
¬
|
not
|
η
|
Eta
| |
!
|
exclamation mark
|
θ
|
Theta
| |
⊕
|
circled plus / oplus
|
ι
|
Iota
| |
~
|
tilde
|
κ
|
Kappa
| |
⇒
|
implies
|
λ
|
Lambda
| |
⇔
|
equivalent
|
μ
|
Mu
| |
↔
|
equivalent
|
ν
|
Nu
| |
∀
|
for all
|
ξ
|
Xi
| |
∃
|
there exists
|
ο
|
Omicron
| |
∄
|
there does not exists
|
π
|
Pi
| |
∴
|
therefore
|
ρ
|
Rho
| |
∵
|
because / since
|
σ
|
Sigma
| |
ε
|
epsilon
|
τ
|
Tau
| |
e
|
e constant / Euler's number
|
υ
|
Upsilon
| |
y '
|
derivative
|
φ
|
Phi
| |
Y ''
|
second derivative
|
χ
|
Chi
| |
Y(n)
|
nth derivative
|
ψ
|
Psi
| |
Dx y
|
derivative
|
ω
|
Omega
| |
Dx2 y
|
second derivative
|
∫
|
Integral
| |
∭
|
triple integral
|
∬
|
double integral
| |
∮
|
closed contour / line integral
|
∯
|
closed surface integral
|