Basics Symbols |
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Description |
Command |
Output |
Addition |
+ |
+ |
Subtraction |
- |
- |
Plus or minus |
\pm |
± |
Multiplication (times) |
\times |
× |
Multiplication (dot) |
\cdot |
· |
division symbol |
\div |
÷ |
division (slash) |
/ |
/ |
circle plus |
\oplus |
⊕ |
circle times |
\otimes |
⊗ |
equal |
= |
= |
not equal |
\ne |
|
less than |
< |
< |
greater than |
> |
> |
less than or equal to |
\le |
≤ |
greater than or equal to |
\ge |
≥ |
approximately equal to |
\approx |
≈ |
infinity |
\infty |
∞ |
dots |
1,2,3, \ldots |
1, 2, 3, . . . |
dots |
1+2+3+\cdots |
1 + 2 + 3 + · · · |
fraction |
\frac{a}{b} |
|
square root |
\sqrt{x} |
|
nth root |
\sqrt[n]{x} |
|
exponentiation |
a^b |
|
subscript |
a_b |
|
absolute value |
|x| |
|
natural log |
\ln(x) |
|
logarithms |
\log_{a}b |
|
exponential function |
e^x=\exp(x) |
|
degree |
\deg(f) |
deg(f) |
Logic |
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Description |
Command |
Output |
not |
\neg |
~ |
and |
\land |
∧ |
or |
\lor |
∨ |
if...then |
\implies |
→ |
if and only if |
\iff |
↔ |
logical equivalence |
\equiv |
≡ |
therefore |
\therefore |
∴ |
there exists |
\exists |
∃ |
for all |
\forall |
∀ |
Functions |
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Description |
Command |
Output |
maps to |
\to |
→ |
composition |
\circ |
◦ |
Piecewise function |
|x|= \begin{cases} |
|
Number theory |
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Description |
Command |
Output |
divides |
| |
| |
does not divide |
\ndv |
|
div |
\dv |
div |
mod |
\mod |
mod |
greatest common divisor |
\gcd |
gcd |
ceiling |
\lceil x \rceil |
⌈x⌉ |
floor |
\lfloor x \rfloor |
⌊x⌋ |
Geometry and trigonometry |
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Description |
Command |
Output |
angle |
\angle ABC |
|
degree |
90^{\circ} |
|
triangle |
\triangle ABC |
|
segment |
\overline{AB} |
|
sine |
\sin |
sin |
cosine |
\cos |
cos |
tangent |
\tan |
tan |
cotangent |
\cot |
cot |
secant |
\sec |
sec |
cosecant |
\csc |
csc |
inverse sine |
\arcsin |
arcsin |
inverse cosine |
\arccos |
arccos |
inverse tangent |
\arctan |
arctan |
Calculus |
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Description |
Command |
Output |
partial derivative |
\frac{\partial y} {\partial x} |
|
derivative |
\f’ |
|
integral |
\int |
|
double integral |
\iint |
|
triple integral |
\iiint |
|
limits |
\lim_{x\to \infty} |
|
summation |
\sum_{n=1}^{\infty}a_n |
|
product |
\prod_{n=1}^{\infty}a_n |
|
Symbols |
||
Description |
Command |
Output |
dollar sign |
\$ |
$ |
percent |
\% |
% |
ampersand |
\& |
& |
pound |
\# |
|
backslash |
\textbackslash |
\ |
left quote marks |
‘‘ |
|
right quote marks |
’’ |
|
single left quote |
‘ |
|
single right quote |
’ |
|
hyphen |
X-ray |
|
en-dash |
pp. 5--15 |
|
em-dash |
Yes---or no? |
Set theory |
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Description |
Command |
Output |
set brackets |
\ {1,2,3\} |
{1,2,3} |
element of |
\in |
|
not an element of |
\not\in |
|
subset of |
\subset |
|
subset of |
\subseteq |
|
not a subset of |
\not\subset |
|
contains |
\supset |
|
contains |
\supseteq |
|
union |
\cup |
|
intersection |
\cap |
|
big union |
\bigcup_{n=1}^{10}A_n |
|
big intersection |
\bigcap_{n=1}^{10}A_n |
|
empty set |
\emptyset |
∅ |
power set |
\mathcal{P} |
P |
minimum |
\min |
min |
maximum |
\max |
max |
supremum |
\sup |
sup |
infimum |
\inf |
inf |
limit superior |
\limsup |
lim sup |
limit inferior |
\liminf |
lim inf |
closure |
\overline{A} A |
Ā |
Linear Algebra |
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Description |
Command |
Output |
vector |
\vec{v} |
|
norm |
||\vec{v}|| |
|
matrix |
\left[ \begin{array}{ccc} 1 & 2 & 3 \\ 4 & 5 & 6\\ 7 & 8 & 0 \end{array} \right] |
|
determinant |
\left| \begin{array}{ccc} 1 & 2 & 3 \\ 4 & 5 & 6 \\ 7 & 8 & 0 \end{array} \right| |
|
determinant |
\det(A) |
det(A) |
trace |
\operatorname{tr}(A) |
tr(A) |
dimension |
\dim(V) |
dim(V ) |