Obsidian Latex Cheatsheet

Math Mode Triggers

Trigger	Replacement	Description	Example
mk	$$0$	Inline math	$x^2$ → $x^2$
dm	$$\n$0\n$$	Display math block	$$x^2$$ → $x^2$
beg	\begin{$0}\n$1\n\end{$0}	Begin/end environment	\begin{align}...\end{align}

Greek Letters

Trigger	Replacement	Example
@a	\alpha	$\alpha$
@b	\beta	$\beta$
@g	\gamma	$\gamma$
@G	\Gamma	$\Gamma$
@d	\delta	$\delta$
@D	\Delta	$\Delta$
@e	\epsilon	$ϵ$
:e	\varepsilon	$\epsilon$
@z	\zeta	$\zeta$
@t	\theta	$\theta$
@T	\Theta	$\Theta$
:t	\vartheta	$\vartheta$
@i	\iota	$\iota$
@k	\kappa	$\kappa$
@l	\lambda	$\lambda$
@L	\Lambda	$\Lambda$
@s	\sigma	$\sigma$
@S	\Sigma	$\Sigma$
@u	\upsilon	$\upsilon$
@U	\Upsilon	${\rm Y}$
@o	\omega	$\omega$
@O	\Omega	$\Omega$
ome	\omega	$\omega$
Ome	\Omega	$\Omega$

Text in Math Mode

Trigger	Replacement	Description	Example
text	\text{$0}$1	Text environment	\text{hello} → $\text{hello}$
"	\text{$0}$1	Quick text	Same as above

Basic Operations

Trigger	Replacement	Description	Example
sr	^{2}	Square	x sr → $x^2$
cb	^{3}	Cube	x cb → $x^3$
rd	^{$0}$1	Power	x rd → $x^n$
_	_{$0}$1	Subscript	x_ → $x_i$
sts	_\text{$0}	Text subscript	x sts → $x_{\text{max}}$
sq	\sqrt{ $0 }$1	Square root	sq → $\sqrt{x}$
//	\frac{$0}{$1}$2	Fraction	// → $\frac{a}{b}$
ee	e^{ $0 }$1	Exponential	ee → $e^x$
invs	^{-1}	Inverse	A invs → $A^{-1}$
conj	^{*}	Conjugate	z conj → $z^{\ast }$

Auto Subscripts

Trigger	Replacement	Description	Example
x2	x_{2}	Letter + digit	$x_2$
x_12	x_{12}	Letter + two digits	$x_{12}$
xnn	x_{n}	x sub n	$x_n$
xii	x_{i}	x sub i	$x_i$
xjj	x_{j}	x sub j	$x_j$
xp1	x_{n+1}	x sub n+1	$x_{n+1}$
ynn	y_{n}	y sub n	$y_n$
yii	y_{i}	y sub i	$y_i$
yjj	y_{j}	y sub j	$y_j$

Font Styles

Trigger	Replacement	Description	Example
bf	\mathbf{$0}	Bold	bf x → $\mathbf{x}$
rm	\mathrm{$0}$1	Roman	rm Re → $\mathrm{Re}$
Re	\mathrm{Re}	Real part	$\mathrm{Re}$
Im	\mathrm{Im}	Imaginary part	$\mathrm{Im}$

Accents and Decorations

Trigger	Replacement	Description	Example
xhat	\hat{x}	Hat (letter)	$\hat{x}$
hat	\hat{$0}$1	Hat (general)	$\hat{a}$
xbar	\bar{x}	Bar (letter)	$\bar{x}$
bar	\bar{$0}$1	Bar (general)	$\bar{a}$
xdot	\dot{x}	Dot (letter)	$\dot{x}$
dot	\dot{$0}$1	Dot (general)	$\dot{a}$
xddot	\ddot{x}	Double dot (letter)	$\ddot{x}$
ddot	\ddot{$0}$1	Double dot (general)	$\ddot{a}$
xtilde	\tilde{x}	Tilde (letter)	$\tilde{x}$
tilde	\tilde{$0}$1	Tilde (general)	$\tilde{a}$
xund	\underline{x}	Underline (letter)	$\underline{x}$
und	\underline{$0}$1	Underline (general)	$\underline{a}$
xvec	\vec{x}	Vector (letter)	$\vec{x}$
vec	\vec{$0}$1	Vector (general)	$\vec{a}$
x,. or x.,	\mathbf{x}	Bold shortcut	$\mathbf{x}$

Symbols and Infinity

Trigger	Replacement	Description	Example
ooo	\infty	Infinity	$\infty$
...	\dots	Ellipsis	$\dots$
cdot	\cdot	Center dot	$\cdot$
xx	\times	Times	$\times$
**	\cdot	Dot product	$\cdot$

Sums, Products, Limits

Trigger	Replacement	Description	Example
sum	\sum	Summation	$\sum$
\sum (in math)	\sum_{i=1}^{N}	Sum with limits	${\sum }_{i=1}^N{x}_i$
prod	\prod	Product	$\prod$
\prod (in math)	\prod_{i=1}^{N}	Product with limits	${\prod }_{i=1}^N{x}_i$
lim	\lim_{ n \to \infty }	Limit	${\lim }_{n\to \infty }$

Relations and Logic

Trigger	Replacement	Description	Example
in	\in	Element of	$\in$
inn	\in	Element of	$\in$
notin	\not\in	Not element of	$\notin$
sub=	\subseteq	Subset or equal	$\subseteq$
sup=	\supseteq	Superset or equal	$\supseteq$
eset	\emptyset	Empty set	$\varnothing$
set	\{ $0 \}$1	Set brackets	$a,b$
+-	\pm	Plus-minus	$\pm$
-+	\mp	Minus-plus	$\mp$
!=	\neq	Not equal	$\ne$
>=	\geq	Greater or equal	$\ge$
<=	\leq	Less or equal	$\le$
>>	\gg	Much greater	$\gg$
<<	\ll	Much less	$\ll$
simm	\sim	Similar	$\sim$
sim=	\simeq	Similar or equal	$\simeq$
===	\equiv	Equivalent	$\equiv$
prop	\propto	Proportional	$\propto$
para	\parallel	Parallel	$\parallel$

Arrows

Trigger	Replacement	Description	Example
->	\to	Right arrow	$\to$
<->	\leftrightarrow	Left-right arrow	$\leftrightarrow$
!>	\mapsto	Maps to	$\mapsto$
=>	\implies	Implies	$⟹$
=<	\impliedby	Implied by	$⟸$

Set Operations

Trigger	Replacement	Description	Example
and	\cap	Intersection	$\cap$
orr	\cup	Union	$\cup$
\\\	\setminus	Set difference	$\setminus$

Common Sets

Trigger	Replacement	Description	Example
NN	\mathbb{N}	Natural numbers	$\mathbb{N}$
ZZ	\mathbb{Z}	Integers	$\mathbb{Z}$
RR	\mathbb{R}	Real numbers	$\mathbb{R}$
CC	\mathbb{C}	Complex numbers	$\mathbb{C}$
LL	\mathcal{L}	Lagrangian	$\mathcal{L}$
HH	\mathcal{H}	Hilbert space	$\mathcal{H}$

Derivatives and Integrals

Trigger	Replacement	Description	Example
par (tab)	\frac{ \partial y }{ \partial x }	Partial derivative	$\frac{\partial y}{\partial x}$
paxy (tab)	\frac{ \partial x }{ \partial y }	Partial (auto)	$\frac{\partial x}{\partial y}$
ddt	\frac{d}{dt}	Time derivative	$\frac{d}{dt}$
int	\int	Integral	$\int$
\int (in math)	\int f \, dx	Integral with differential	$\int f,dx$
dint	\int_{0}^{1} f \, dx	Definite integral	${\int }_0^{1}f,dx$
oint	\oint	Contour integral	$\oint$
iint	\iint	Double integral	$\iint$
iiint	\iiint	Triple integral	$\iiint$
oinf	\int_{0}^{\infty} f \, dx	0 to infinity	${\int }_0^{\infty }f,dx$
infi	\int_{-\infty}^{\infty} f \, dx	-inf to inf	${\int }_{-\infty }^{\infty }f,dx$

Trigonometry

Trigger	Replacement	Description	Example
sin	\sin	Sine	$\sin x$
cos	\cos	Cosine	$\cos x$
tan	\tan	Tangent	$\tan x$
arcsin	\arcsin	Arcsine	$\arcsin x$
arccos	\arccos	Arccosine	$\arccos x$
arctan	\arctan	Arctangent	$\arctan x$
csc	\csc	Cosecant	$\csc x$
sec	\sec	Secant	$\sec x$
cot	\cot	Cotangent	$\cot x$
sinh	\sinh	Hyperbolic sine	$\sinh x$
cosh	\cosh	Hyperbolic cosine	$\cosh x$
tanh	\tanh	Hyperbolic tangent	$\tanh x$
coth	\coth	Hyperbolic cotangent	$\coth x$

Functions

Trigger	Replacement	Description	Example
exp	\exp	Exponential	$\exp (x)$
log	\log	Logarithm	$\log x$
ln	\ln	Natural log	$\ln x$
det	\det	Determinant	$\det (A)$
trace	\mathrm{Tr}	Trace	$\mathrm{Tr}(A)$

Visual Operations (for selected text)

Have to select first and then press.

Trigger	Replacement	Description	Example
U	\underbrace{ ... }_{ }	Underbrace	$\underset{\text{sum}}{\underbrace{x+y}}$
O	\overbrace{ ... }^{ }	Overbrace	$\stackrel{\text{sum}}{\overbrace{x+y}}$
B	\underset{ }{ ... }	Underset	$\underset{i}{\mathrm{argmax}}$
C	\cancel{ ... }	Cancel	$\cancel{x}$
K	\cancelto{ }{ ... }	Cancel to	$\text{cancelto}0x$
S	\sqrt{ ... }	Square root	$\sqrt{x}$

Matrix Environments

Trigger	Replacement	Description	Example
pmat	\begin{pmatrix}...\end{pmatrix}	Parenthesis matrix	$\left(\begin{array}{cc}a& b\\ c& d\end{array}\right)$
bmat	\begin{bmatrix}...\end{bmatrix}	Bracket matrix	$\left[\begin{array}{cc}a& b\\ c& d\end{array}\right]$
Bmat	\begin{Bmatrix}...\end{Bmatrix}	Brace matrix	$\left\{\begin{array}{cc}a& b\\ c& d\end{array}\right\}$
vmat	\begin{vmatrix}...\end{vmatrix}	Vertical bar matrix	$\left|\begin{array}{cc}a& b\\ c& d\end{array}\right|$
Vmat	\begin{Vmatrix}...\end{Vmatrix}	Double bar matrix	$\Vert \begin{array}{cc}a& b\\ c& d\end{array}\Vert$
matrix	\begin{matrix}...\end{matrix}	Plain matrix	$\begin{array}{cc}a& b\\ c& d\end{array}$
cases	\begin{cases}...\end{cases}	Cases environment	$\{\begin{array}{ll}x& x>0\\ -x& x<0\end{array}$
align	\begin{align}...\end{align}	Align environment	Multi-line equations
array	\begin{array}...\end{array}	Array environment	Custom arrays

Brackets and Delimiters

Trigger	Replacement	Description	Example
(	($0)$1	Parentheses	$(x)$
[	[$0]$1	Square brackets	$[x]$
{	{$0}$1	Curly braces	(needs escaping)
lr(	\left( $0 \right)	Auto-sized parens	$\left(\frac{a}{b}\right)$
lr[	\left[ $0 \right]	Auto-sized brackets	$\left[\frac{a}{b}\right]$
lr{	\left\{ $0 \right\}	Auto-sized braces	$\left\{\frac{a}{b}\right\}$
lra	\left< $0 \right>	Auto-sized angles	$⟨\frac{a}{b}⟩$
avg	\langle $0 \rangle	Angle brackets	$⟨x⟩$
norm	\lvert $0 \rvert	Norm	$|x|$
Norm	\lVert $0 \rVert	Double norm	$\Vert x\Vert$
ceil	\lceil $0 \rceil	Ceiling	$\lceil x\rceil$
floor	\lfloor $0 \rfloor	Floor	$\lfloor x\rfloor$
mod	|$0|	Absolute value	$

Physics

Trigger	Replacement	Description	Example
nabl / del	\nabla	Nabla/Del	$\nabla$
kbt	k_{B}T	Boltzmann constant × T	$k_{B}T$
msun	M_{\odot}	Solar mass	$M_{\odot }$

Quantum Mechanics

Trigger	Replacement	Description	Example
dag	^{\dagger}	Dagger (Hermitian)	$A^{†}$
o+	\oplus	Direct sum	$\oplus$
ox	\otimes	Tensor product	$\otimes$
bra	\bra{$0}	Bra	$\langle\psi
ket	\ket{$0}	Ket	$
brk	\braket{ $0 | $1 }	Braket	$\langle\phi
outer	\ket{\psi} \bra{\psi}	Outer product	$

Chemistry

Trigger	Replacement	Description	Example
pu	\pu{ $0 }	Physical units	$\text{pu}5mol$
cee	\ce{ $0 }	Chemical equation	$\text{ce}H2O$
he4	{}^{4}_{2}He	Helium-4	${}_2^4\text{He}$
he3	{}^{3}_{2}He	Helium-3	${}_2^3\text{He}$
iso	{}^{4}_{2}He	Isotope notation	${}_Z^{A}X$

Special Functions

Trigger	Replacement	Description	Result
tayl	Taylor expansion template	Full Taylor series	$f(x+h)=f(x)+f^{\prime }(x)h+\frac{f^{\prime \prime }(x)h^2}{2!}+\dots$
iden3	3×3 identity matrix	Auto-generates	$\left(\begin{array}{ccc}<br>1& 0& 0\\ <br>0& 1& 0\\ <br>0& 0& 1<br>\end{array}\right)$

This cheatsheet covers all your shortcuts! The most commonly used ones are probably the Greek letters, basic operations (fractions, powers, subscripts), and the matrix environments.