\Alpha
The Greek letter Alpha (\Alpha) is used in mathematics and science to represent various concepts, such as angles, coefficients, or variables. It is the first letter of the Greek alphabet and is often used to denote the first in a series of items or the beginning of a sequence.
Alpha used to represent an angle in degrees.
\Alpha = 45^\circ
Alpha used as a coefficient in a physics equation.
E = mc^2 + \Alpha x
Alpha used as a variable in a trigonometric function.
f(\Alpha) = \sin(\Alpha) + \cos(\Alpha)