Basic Math Symbols – Geometry, Algebra, Greek, Logic, Number

Here you will get a list of basic math symbols. Also, you can find specific mathematical symbols with their sign, and meaning.

We have divided the tables into 7 subparts. So, you can find your symbol easily.

  1. Basic Math Symbols
  2. Algebra Symbols
  3. Linear Algebra Symbols
  4. Logic Symbols
  5. Number Symbols
  6. Greek Alphabet Symbols
  7. Roman Numerals

So, let’s start.

Basic Math Symbols - Geometry, Algebra, Greek, Logic, Number

Basic Math Symbols

SymbolNameMeaning
=equals signequality
not equal signinequality
approximately equalapproximation
>strict inequalitygreater than
<strict inequalityless than
inequalitygreater than or equal to
inequalityless than or equal to
( )parenthesescalculate expression inside first
[ ]bracketscalculate expression inside first
+plus signaddition
minus signsubtraction
±plus – minusboth plus and minus operations
±minus – plusboth minus and plus operations
*asteriskmultiplication
×times signmultiplication
multiplication dotmultiplication
÷division sign / obelusdivision
/division slashdivision
horizontal linedivision / fraction
modmoduloremainder calculation
.perioddecimal point, decimal separator
abpowerexponent
a^bcaretexponent
asquare rootaa  = a
3acube root3a3a  ⋅ 3a  = a
4afourth root4a4a  ⋅ 4a  ⋅ 4a  = a
nan-th root (radical) 
%percent1% = 1/100
per-mille1‰ = 1/1000 = 0.1%
ppmper-million1ppm = 1/1000000
ppbper-billion1ppb = 1/1000000000
pptper-trillion1ppt = 10-12

Algebra Symbols

SymbolNameMeaning
xx variableunknown value to find
equivalenceidentical to
equal by definitionequal by definition
:=equal by definitionequal by definition
~approximately equalweak approximation
approximately equalapproximation
proportional toproportional to
lemniscateinfinity symbol
much less thanmuch less than
much greater thanmuch greater than
( )parenthesescalculate expression inside first
[ ]bracketscalculate expression inside first
{ }bracesset
xfloor bracketsrounds number to lower integer
xceiling bracketsrounds number to upper integer
x!exclamation markfactorial
| x |vertical barsabsolute value
f (x)function of xmaps values of x to f(x)
(fg)function composition(fg) (x) = f (g(x))
(a,b)open interval(a,b) = {x | a < x < b}
[a,b]closed interval[a,b] = {x | axb}
deltachange / difference
discriminantΔ = b2 – 4ac
sigmasummation – sum of all values in range of series
∑∑sigmadouble summation
capital piproduct – product of all values in range of series
ee constant / Euler’s numbere = 2.718281828…
γEuler-Mascheroni constantγ = 0.5772156649…
φgolden ratiogolden ratio constant
πpi constantπ = 3.141592654… is the ratio between the circumference and diameter of a circle

Linear Algebra Symbols

SymbolNameMeaning
·dotscalar product
×crossvector product
ABtensor producttensor product of A and B
< x,y >inner product 
[ ]bracketsmatrix of numbers
( )parenthesesmatrix of numbers
| A |determinantdeterminant of matrix A
det(A)determinantdeterminant of matrix A
|| x ||double vertical barsnorm
ATtransposematrix transpose
AHermitian matrixmatrix conjugate transpose
A*Hermitian matrixmatrix conjugate transpose
A-1inverse matrixA A-1 = I
rank(A)matrix rankrank of matrix A
dim(U)dimensiondimension of matrix A

Logic symbols

SymbolNameMeaning
andand
^caret / circumflexand
&ampersandand
+plusor
reversed caretor
|vertical lineor
xsingle quotenot – negation
xbarnot – negation
¬notnot – negation
!exclamation marknot – negation
circled plus / oplusexclusive or – xor
~tildenegation
implies 
equivalentif and only if (iff)
equivalentif and only if (iff)
for all 
there exists 
there does not exists 
therefore 
because / since 

Numeral Symbols

NameWestern ArabicRoman
zero0 
one1I
two2II
three3III
four4IV
five5V
six6VI
seven7VII
eight8VIII
nine9IX
ten10X
eleven11XI
twelve12XII
thirteen13XIII
fourteen14XIV
fifteen15XV
sixteen16XVI
seventeen17XVII
eighteen18XVIII
nineteen19XIX
twenty20XX
thirty30XXX
forty40XL
fifty50L
sixty60LX
seventy70LXX
eighty80LXXX
ninety90XC
one hundred100C

Greek Alphabet Symbols

Upper CaseLower CaseGreek Letter
ΑαAlpha
ΒβBeta
ΓγGamma
ΔδDelta
ΕεEpsilon
ΖζZeta
ΗηEta
ΘθTheta
ΙιIota
ΚκKappa
ΛλLambda
ΜμMu
ΝνNu
ΞξXi
ΟοOmicron
ΠπPi
ΡρRho
ΣσSigma
ΤτTau
ΥυUpsilon
ΦφPhi
ΧχChi
ΨψPsi
ΩωOmega

Roman Numerals

NumberRoman Numeral
0not defined
1I
2II
3III
4IV
5V
6VI
7VII
8VIII
9IX
10X
11XI
12XII
13XIII
14XIV
15XV
16XVI
17XVII
18XVIII
19XIX
20XX
30XXX
40XL
50L
60LX
70LXX
80LXXX
90XC
100C
200CC
300CCC
400CD
500D
600DC
700DCC
800DCCC
900CM
1000M
5000 V
10000 X
50000 L
100000 C
500000 D
1000000 M

Above all are the math symbols with their values and their names. Please share it if you like it.