A: The hyperbola angle is an angle related to hyperbola, and its meaning is twice the area enclosed by the straight line passing through the origin and the right branch and the X axis and the right side of hyperbola, usually expressed by φ.

Extension:

nature

The range of hyperbola angle is a real number set, and the coordinates of the intersection of straight line and hyperbola are (chφ, shφ), and ch and sh are hyperbolic cosine function and hyperbolic sine functions respectively.

App application

Hyperbolic function, hyperbolic complex number, Minkowski spacetime.

Baidu encyclopedia-hyperbolic angle