KaTeX compatible latex references (for my personal uses)
\alpha A
\beta B
\gamma \Gamma
\delta \Delta
\epsilon \varepsilon E
\zeta Z
\eta H
\theta \vartheta \Theta
\iota I
\kappa K
\lambda \Lambda
\mu M
\nu N
\xi \Xi
o O
\pi \Pi
\rho \varrho P
\sigma \Sigma
\tau T
\upsilon \Upsilon
\phi \varphi \Phi
\chi X
\psi \Psi
\omega \Omega
\times
\otimes \oplus
\cup \cap
< >
\subset \supset
\subseteq \supseteq
\int \oint \sum \prod
aligning
\vzero \vone \vmu \vtheta \va \vb \vc \vz
\mA \mB \mC \mX \mBeta \mPhi \mLambda \mSigma
\tA \tB \tC \tX
\reta \ra \rb \rc \rx
\rva \rvb \rvc \rvx
\rmA \rmB \rmC \rmZ
\evalpha_i \evbeta_i \evepsilon_i \evlambda_i \evomega_i \evpsi_i \evsigma_i \evtheta_i \eva_i \evb_i \evc_i \evz_i
\emLambda_{i, j} \emSigma_{i, j} \emA_{i, j} \emB_{i, j} \emC_{i, j} \emX_{i, j}
\etLambda_{i,j,k} \etA_{i,j,k} \etB_{i,j,k} \etC_{i,j,k} \etX_{i,j,k}
:\ermA_{i,j} \ermB_{i,j} \ermC_{i,j} \ermZ_{i,j}
\train \valid \test
\sA \sB \sC \sX
\gA \gB \gC \gX