Here is an in-line equation $\sqrt{3x-1}+(1+x)^2$ in the body of the text.
Here is an in-line equation \[ \sqrt{3x-1}+(1+x)^2 \] in the body of the text.
Here is an equation: $\left [ - \frac{\hbar^2}{2 m} \frac{\partial^2}{\partial x^2} + V \right ] \Psi
= i \hbar \frac{\partial}{\partial t} \Psi$
Here is an equation: \[\left [ - \frac{\hbar^2}{2 m} \frac{\partial^2}{\partial x^2} + V \right ] \Psi = i \hbar \frac{\partial}{\partial t} \Psi\]
symbols
1. &
used as separators in alignment environments
a < b
a < b
2. ^, _, { and }
^ used to indicate exponents;
^ used to indicate superscripts;
_ used to indicate subscripts;
{} braces, used for grouping;
x^i_2
\[ x^i_2 \]
{x^i}_2
\[ {x^i}_2 \]
x^{i_2}
\[ x^{i_2} \]
x^{i^2}
\[ x^{i^2} \]
{x^i}^2
\[ {x^i}^2 \]
^ax^b
\[ ^ax^b \]
\sum_{n=1}^\infty
\[ \sum_{n=1}^\infty \]
3. Greek letter
\alpha, \beta, \chi, \Delta, \delta, \epsilon, \eta, \Gamma, \gamma, \iota, \kappa
\[ \alpha, \beta, \chi, \Delta, \delta, \epsilon, \eta, \Gamma, \gamma, \iota, \kappa \]
\Lambda, \lambda, \mu, \omega, \Omega, \phi, \Phi, \pi, \Pi, \psi, \Psi
\[ \Lambda, \lambda, \mu, \omega, \Omega, \phi, \Phi, \pi, \Pi, \psi, \Psi \]
\rho, \sigma, \Sigma, \tau, \theta, \Theta, \upsilon, \Upsilon, \varDelta, \varepsilon, \varGamma
\[ \rho, \sigma, \Sigma, \tau, \theta, \Theta, \upsilon, \Upsilon, \varDelta, \varepsilon, \varGamma \]
\varLambda, \varOmega, \varphi, \varPhi, \varpi, \varPi, \xi, \zeta
\[ \varLambda, \varOmega, \varphi, \varPhi, \varpi, \varPi, \xi, \zeta \]
4. \frac
\frac a b
\[ \frac a b \]
\frac{a-1}b-1
\[\frac{a-1}b-1 \]
\frac{a-1}{b-1}
\[ \frac{a-1}{b-1} \]
github pages: delimiters \\(, \\) and \\[, \\] for inline and displayed math, respectively.
Rstudio: delimiters $, $ and $$, $$ for inline and displayed math, respectively.
Reference: TEX Commands available in MathJax