Homonym: α (Alpha)
The Greek letter "α" (alpha) is the first letter of the Greek alphabet. It is commonly used in various fields, including mathematics, science, and finance. In mathematics, "α" often represents angles in geometry or variables in equations.
In addition to its mathematical significance, "α" is also used in the naming of particles, such as alpha particles, which are a type of radiation. In finance, "α" can refer to the measure of an investment's performance relative to a benchmark, indicating the excess return generated by an investment strategy.