\Beta
The Greek letter Beta, represented as \Beta in LaTeX, is often used in mathematics and science to denote a variety of concepts, such as coefficients in statistics, angles in geometry, or beta particles in physics.
Beta coefficient in finance, representing the volatility of an asset compared to the market.
\Beta = \frac{\sigma_X}{\sigma_Y}
Beta function in mathematics, a special function of two variables.
\Beta(\alpha, \beta) = \int_0^1 t^{\alpha-1} (1-t)^{\beta-1} \, dt
Beta plus decay in nuclear physics, a type of radioactive decay.
\Beta^+ \text{ decay}