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What does the e symbol mean in math

1 years ago
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This list of commonly used mathematical symbols explains what each math symbol is, how it is used and provides a sample expression. 

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Symbol What it is How it is read How it is used Sample expression
+ Addition sign
Logical OR symbol 		... plus ...
... or ... 		Sum of a few values
Logical disjunction 		3 + 5 = 8
¬(A + B) = ¬A * ¬B
* Multiplication sign
Logical AND symbol 		... times ...
... and ... 		Product of two values
Logical conjunction 		3 x 5 = 15
¬(A * B) = ¬A + ¬B
x Multiplication sign ... times ... Product of two values 3 x 5 = 15
· Multiplication sign ... times ... Product of two values 3 · 5 = 15
What does the e symbol mean in math
summation sign The summation of ... Sum of many or
infinitely many values
What does the e symbol mean in math
What does the e symbol mean in math
Integral sign The integral of ... integration
What does the e symbol mean in math
x2 dx = x3/3 + c
What does the e symbol mean in math
Double integral sign The double integral of ... integration
What does the e symbol mean in math
f(x,y) dx dy
What does the e symbol mean in math
Triple integral sign The triple integral of ... integration
What does the e symbol mean in math
f(x,y,z) dx dy dz
What does the e symbol mean in math
Line integral sign The line integral of ... integration
What does the e symbol mean in math
F
What does the e symbol mean in math
dx
What does the e symbol mean in math
Surface integral sign The surface integral of ... integration
What does the e symbol mean in math
F(x,y,z) dx dy
- Subtraction sign
Minus sign 		... minus ...
Negative... 		Difference of two values,
negative number 		3 - 5 = -2
± Plus/minus sign ... plus or minus ... Expression of range,
error, or tolerance 		500 kbps ± 10%
What does the e symbol mean in math
dot product sign ... dot ... Scalar (dot) product
of two vectors 		A
What does the e symbol mean in math
B = B
What does the e symbol mean in math
A
x Cross product sign ... cross ... Vector (cross) product
of two vectors 		A x B = - (B x A)
What does the e symbol mean in math
Product sign The product of ... Product of three up to
infinitely many values
What does the e symbol mean in math
^ Carat ... to the power of ... exponent 2 ^ 5 = 32
! Exclamation ... factorial Product of all positive
integers up to a
certain value 		5! = 120
What does the e symbol mean in math
Surd ... root of ... Algebraic expressions z =
What does the e symbol mean in math
(x + y)
What does the e symbol mean in math
Square root symbol The square root of ... Algebraic expressions
What does the e symbol mean in math
... Continuation sign ... and so on up to ...
... and so on indefinitely 		Extension of sequence S = {1, 2, 3, ...}
/ Slash ... divided by ...
... over ... 		Division 3/4 = 0.75
÷ Division sign ... divided by ... Division 3 ÷ 4 = 0.75
What does the e symbol mean in math
Percent symbol ... percent ... Proportion 0.032 = 3.2
What does the e symbol mean in math
What does the e symbol mean in math
Per mil symbol ... per mil ... Proportion 0.032 = 32
What does the e symbol mean in math
: Colon,
ratio sign 		... is to ...
... such that ...
... it is true that ... 		Division or ratio,
symbol following
logical quantifier or
used in defining a set 		2:4 = 20:40

What does the e symbol mean in math
x : x > 4 and x < 5

What does the e symbol mean in math
x : x < 0 or x > -1

S = {x : x < 3}

| Vertical line ... such that ...
...it is true that ... 		Symbol following
logical quantifier or
used in defining a set
What does the e symbol mean in math
x | x > 4 and x < 5

What does the e symbol mean in math
x | x < 0 or x > -1

S = {x | x < 3}

:: Double colon ... averaged with ... arithmetic mean 3 :: 11 = 7
What does the e symbol mean in math
 		lemniscate ... infinity
... increases without limit 		Infinite summations
Infinite sequence
Limit
What does the e symbol mean in math
x : x < 
What does the e symbol mean in math
(  ) Parentheses ...quantity...
...list...
...set of coordinates...
...open interval 		Denotes a quantity, list,
set of coordinates, or an
open interval 		(x + y) + z
(a1, a2, a3, a4)
(x,y,z)
(3,5)
[  ] Square brackets ... the quantity ...
... the closed interval ... 		Denotes a quantity or a
closed interval 		w + [(x + y) + z]
[3,5]
(  ] Hybrid brackets ... the half-open interval ... Denotes a
half-open interval 		(3,5]
[  ) Hybrid brackets ... the half-open interval ... Denotes a
half-open interval 		[3,5)
{  } Curly brackets ... the quantity ...
... the SET ... 		Denotes a quantity or a SET E = {2, 4, 6, 8, ...}
= Equal sign ... equals ... Indicates two values
are the same 		-(-5) = 5
2z2 + 4z - 6 = 0
What does the e symbol mean in math
proportionality sign ... is proportional to ... Indicates two variables
change in direct proportion 		x 
What does the e symbol mean in math
y
~ Similarity sign ... is similar to ... Indicates two objects are
geometrically similar
What does the e symbol mean in math
ABC ~
What does the e symbol mean in math
DEF
What does the e symbol mean in math
Approximate
equal sign 		... is approximately equal to ... Indicates two values are
close to each other 		x + y
What does the e symbol mean in math
 z
What does the e symbol mean in math
Inequality sign ... is not equal to ... Indicates two values
are different 		x
What does the e symbol mean in math
 y
< Inequality sign ... is less than ... Indicates value on left
is smaller than
value on right 		3 < 5
x < y
What does the e symbol mean in math
Inequality sign ... is less than or equal to ...
... is at most equal to ... 		Indicates value on left
is smaller than or equal to
value on right 		x
What does the e symbol mean in math
y
> Inequality sign ... is greater than ... Indicates value on left
is larger than
value on right 		5 > 3
x > y
≥ Inequality sign ... is greater than or equal to ... Indicates value on left
is larger than or equal to
value on right 		x ≥ y
|  | absolute value sign The absolute value of ... Distance of value from
origin in number line,
plane, or space 		| -3 | = 3
What does the e symbol mean in math
increment sign,
Triangle symbol 		the change in ...
triangle ... 		Indicates a small change,
Denotes vertices of triangle 		m =
What does the e symbol mean in math
y /
What does the e symbol mean in math
x
What does the e symbol mean in math
ABC =
What does the e symbol mean in math
DEF
What does the e symbol mean in math
Perpendicularity
symbol 		... is perpendicular to ... Geometry L
What does the e symbol mean in math
M
// Parallel symbol ... is parallel to ... Geometry L // M
What does the e symbol mean in math
Angle symbol Angle ... Geometry
What does the e symbol mean in math
ABC =
What does the e symbol mean in math
DEF
What does the e symbol mean in math
Existential quantifier For some ...
There exists a(n) ... 		Logical statements
What does the e symbol mean in math
x : x > 4 and x < 5
What does the e symbol mean in math
Universal quantifier For all ...
For every ... 		Logical statements
What does the e symbol mean in math
x : x < 0 or x > -1
¬ Logical negation
symbol 		not ... Logical statements ¬(¬A)
What does the e symbol mean in math
A
What does the e symbol mean in math
logical implication
symbol 		... implies ...
If ... then ... 		Logical statements A
What does the e symbol mean in math
B
What does the e symbol mean in math
logical equivalence
symbol 		... is logically equivalent to ...
... if and only if .. 		Logical statements A
What does the e symbol mean in math
B
What does the e symbol mean in math
Three dots ... therefore ...
... it follows that ... 		Logical statements or
mathematical proofs 		x = y and y = z
What does the e symbol mean in math
x = z
What does the e symbol mean in math
Element-of
symbol 		... is an element of
a set ... 		Sets a
What does the e symbol mean in math
A
What does the e symbol mean in math
Not-element-of
symbol 		... is not an element of
a set ... 		Sets b
What does the e symbol mean in math
A
What does the e symbol mean in math
Subset symbol ... is a subset of ... Sets A
What does the e symbol mean in math
B
What does the e symbol mean in math
Proper subset symbol ... is a proper subset of ... Sets A
What does the e symbol mean in math
B
What does the e symbol mean in math
Union symbol ... union ... Sets A
What does the e symbol mean in math
B = B
What does the e symbol mean in math
A
What does the e symbol mean in math
Intersection symbol ... intersect ...
... intersected with ... 		Sets A
What does the e symbol mean in math
B = B
What does the e symbol mean in math
A
What does the e symbol mean in math
Null symbol The null set
The empty set 		Sets
What does the e symbol mean in math
= { }
What does the e symbol mean in math
Hebrew aleph
(uppercase) 		Aleph ... Transfinite cardinal
What does the e symbol mean in math
1 +
What does the e symbol mean in math
0 =
What does the e symbol mean in math
1
º Degree symbol ... degree(s) Angular measure
Temperature 		T = +20 ºC
 θ Greek theta
(lowercase) 		... theta ... Angular variable  θ = 90º
φ Greek phi
(lowercase) 		... phi ... Angular variable
What does the e symbol mean in math
= 45º
λ Greek lambda
(lowercase) 		... lambda ... Wavelength
Ratio
Eigenvalue
Lebesgue measure
What does the e symbol mean in math
= 70 cm
What does the e symbol mean in math
= 3:1
µ Greek mu
(lowercase) 		micro- (10-6) Prefix multiplier C = 0.001 µF
What does the e symbol mean in math
Greek pi
(lowercase) 		... pi ... General science
What does the e symbol mean in math
 
What does the e symbol mean in math
3.14159
What does the e symbol mean in math
Greek omega
(uppercase) 		... omega ... Volume of an object
Ohms (resistance) 		R2 = 330
What does the e symbol mean in math
What does the e symbol mean in math
Greek omega
(lowercase) 		... omega ... Transfinite ordinal
Angular velocity
Period
What does the e symbol mean in math
= 36,000 rad/s
What does the e symbol mean in math
= 1/60 s
What does the e symbol mean in math
, N 		Enhanced or bold N The set of natural numbers Number theory
Set theory
What does the e symbol mean in math
= {0, 1, 2, 3, ...}
What does the e symbol mean in math
, Z 		Enhanced or bold Z The set of integers Number theory
Set theory
What does the e symbol mean in math
= {0, 1, -1, 2, -2, 3, -3, ...}
What does the e symbol mean in math
, Q 		Enhanced or bold Q The set of rational numbers Number theory
Set theory
What does the e symbol mean in math
= {a/b | a and b are in
What does the e symbol mean in math
}
What does the e symbol mean in math
, R 		Enhanced or bold R The set of real numbers Number theory
Set theory 		What is the cardinality of
What does the e symbol mean in math
?

This was last updated in June 2021

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What does ∑ mean in math?

Simple sum The symbol Σ (sigma) is generally used to denote a sum of multiple terms. This symbol is generally accompanied by an index that varies to encompass all terms that must be considered in the sum. For example, the sum of first whole numbers can be represented in the following manner: 1 2 3 ⋯.

What does ∈ mean in math?

The symbol ∈ indicates set membership and means “is an element of” so that the statement x∈A means that x is an element of the set A. In other words, x is one of the objects in the collection of (possibly many) objects in the set A.

What does ε mean in math?

ε: “Error term” in regression/statistics; more generally used to denote an arbitrarily small, positive number. ∈ (Variant Epsilon) This version of epsilon is used in set theory to mean “belongs to” or “is in the set of”: x ∈ X; similarly used to indicate the range of a parameter: x ∈ [0, 1].

What does Ǝ mean in math?

∃! (mathematics) The symbol used in predicate calculus, etc, to represent the unique existential quantifier, meaning "there exists exactly one".

symbol math € math symbol

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