LatexCheatsheet

Input	Rendered
$a = b + c − d$	$a = b + c − d$
$\sqrt{?\frac{\pi}{2}}$	$\sqrt{\frac{\pi}{2}}$
$y = a x_1^2 + b x_2 + c$	$y = a x_1^2 + b x_2 + c$

Special characters / Symbols

\imath $\rightarrow$ $\imath$, \jmath $\rightarrow$ $\jmath$

\hat{\imath} $\rightarrow$ $\hat{\imath}$, \hat{\jmath} $\rightarrow$ $\hat{\jmath}$

LaTex		LaTex
\Gamma	Γ	\Delta	∆
\Lambda	Λ	\Phi	Φ
\Pi	Π	\Psi	Ψ
\Sigma	Σ	\Theta	Θ
\Upsilon	Υ	\Xi	Ξ
\Omega	Ω

LaTex		LaTex
\alpha	α	\nu	ν
\beta	β	\kappa	κ
\gamma	γ	\lambda	λ
\delta	δ	\mu	µ
\epsilon	ϵ	\zeta	ζ
\eta	η	\theta	θ
\iota	ι	\xi	ξ
\pi	π	\rho	ρ
\sigma	σ	\tau	τ
\upsilon	υ	\phi	φ
\chi	χ	\psi	ψ
\omega	ω

#####Other:

LaTex		LaTex
\digamma	ϝ	varepsilon	ε
\varkappa	ϰ	\varphi	ϕ
\varpi	ϖ	\varrho	ϱ
\varsigma	ς	\vartheta	ϑ
\eth	ð	\hbar	$\hbar$

LaTex		LaTex
\partial	∂	\infty	∞
\wedge	∧	\vee	∨
\neg \not	¬
\bot	⊥	\top	⊤
\nabla	∇	\varnothing	∅
\angle	∠	\measuredangle	∡
\surd	√	\forall	∀
\exists	∃	\nexists	∄

####Relational Symbols

LaTex		LaTex
\hookrightarrow	↪	\Rightarrow	⇒
\rightarrow	→	\Leftrightarrow	⇔
\nrightarrow	↛	\mapsto	$\mapsto$
\geq	≥	\leq	≤
\equiv	≡	\sim	∼
\gg	≫	\ll	≪
\subset	⊂	\subseteq	⊆
\in	∈	\notin	∉
\mid	$\mid$	\propto	∝
\perp	⊥	\parallel	∥
\vartriangle	$\vartriangle$

LaTex		LaTex
\wedge	∧	\vee	∨
\neg``\not	¬

LaTex		LaTex
\int	∫	\iint	$\iint$
\iiint	$\iiint$
\prod	$\prod$	\sum	$\sum$
\bigcup	$\bigcup$	\bigcap	$\bigcap$

$\arccos$, $\arcsin$, $\arctan$, $\arg$, $\cos$, $\cosh$, $\cot$, $\coth$, $\deg$, $\det$, $\dim$, $\exp$, $\gcd$, $\hom$, $\inf$, $\injlim$, $\lg$, $\lim$, $\liminf$, $\limsup$, $\ln$, $\log$, $\max$, $\min$, $\Pr$, $\projlim$, $\sec$, $\sin$, $\sinh$, $\sup$

If you want spacing in Math mode (within equations), LaTeX provides the following four commands for use in math mode:

1. \; - a thick space.

2. \: - a medium space.

3. \, - a thin space.

4. \! - a negative thin space.