hyperbolic sine

== English == === Noun === hyperbolic sine (plural hyperbolic sines) (mathematics) A hyperbolic function that is the analogue of the sine function for hyperbolic spaces, taking in a hyperbolic angle as an argument and returning the y-coordinate for the corresponding point on the unit hyperbola. It is written in symbol sinh and can be represented as: sinh ⁡ ( x ) = 1 2 ( e x − e − x ) {\displaystyle \sinh(x)={\tfrac {1}{2}}(e^{x}-e^{-x})} ==== Translations ==== === See also === hyperbolic cosine