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hyperbolic function

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hyperbolic function

In mathematics, one of a set of functions related to the hyperbola in the same way the trigonometric functions relate to the circle. They are the hyperbolic sine, cosine, tangent, secant, cotangent, and cosecant (written “sinh,” “cosh,” etc.). The hyperbolic equivalent of the fundamental trigonometric identity is cosh2z − sinh2z = 1. The hyperbolic sine and cosine, particularly useful for finding special types of integrals, can be defined in terms of exponential functions:

sinhx = (exex) ÷ 2 and coshx = (ex + ex) ÷ 2



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He included appendices on the D-operator methods and hyperbolic functions and ODES.
It has been suggested (11) that [Tau](u) can be described by a hyperbolic function of the form [Tau](u) = ([[Tau].
The hyperbolic function is concave, implying slower decay during the early life of an asset and faster decay during the later years.
 
 
 
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