Hyperbolic arcsine function

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Calculates the hyperbolic arcsine of a value. Hyperbolic trigonometric functions are based on the hyperbola with the equation x2 – y2 = 1. These functions differ from those in standard trigonometry (also called circular trigonometry), whose functions are based on the unit circle with the equation x2 + y2 = 1. However, they share many similar identities, such as sinh2 x + cosh2 x = 1, where h represents hyperbolic.



For number, specify the value or the column of values.


Column Calculator expression Result
C1 contains 67 ASNH(C1) 0.89789548699


Hyperbolic functions have many useful applications in engineering, such as electrical transportation (to calculate length, weight, and stress of cables and conducting wires), superstructure (to compute elastic curves and deflection of suspension bridges), and aerospace (to determine ideal surface coatings for aircraft). In statistics, the inverse hyperbolic sine is used in the Johnson transformation to transform the data so it follows a normal distribution. Normality is a necessary assumption for some capability analyses.


For a specified value of x, sinh x = (ex – e-x) / 2, where h represents hyperbolic and e is the constant equal to approximately 2.718.

The inverse of the function is arcsinh x (sinh-1 x).

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