In geometry, hyperbolic angle is a real number determined by the area of the corresponding hyperbolic sector of xy = 1 in Quadrant I of the Cartesian plane. Hyperbolic angle is a shuffled form of natural logarithm as they both are defined as an area against hyperbola xy = 1, and they both are preserved by squeeze mappings since those mappings preserve area.
In geometry, hyperbolic angle is a real number determined by the area of the corresponding hyperbolic sector of xy = 1 in Quadrant I of the Cartesian plane. Hyperbolic angle is a shuffled form of natural logarithm as they both are defined as an area against hyperbola xy = 1, and they both are preserved by squeeze mappings since those mappings preserve area.
Source: Wikipedia "Hyperbolic angle" · CC BY-SA 4.0
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