Does anyone know what the arguments alpha and beta in random.betavariate(alpha, beta) are?

Question

Of course, alpha and beta are angles and if I choose them close together, the range of random values ​​is also low. But what geometric meaning do these angles have and how does the system come to the values?
Is there any connection with the unit circle?

Answer 1

random. betavariate (alpha, beta). Beta distribution. Conditions on the parameters are alpha > 0 and beta > 0 . Returned values range between 0 and 1.
Used in python.