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A Csc H Function
Math Trig Complex Class

Public Function ACscH( _
    ByVal vX As Variant _
    ) As Variant

"Inverse Hyperbolic Cosecant"
Angle whose hyperbolic cosecant is X.
Inverse of the CscH function.

Examples: 
    ACscH(-10) = -9.98340805457674E-02
    ACscH(-2) = -0.481211825059603
    ACscH(-1) = -0.881373587019543
    ACscH(-0.5) = -1.44363547517881
    IsNull(ACscH(0)) = True
    ACscH(0.5) = 1.44363547517881
    ACscH(1) = 0.881373587019543
    ACscH(2) = 0.481211825059603
    ACscH(-10) = -9.98340805457674E-02
    ACscH("2.3|-4.5") = "9.13468282163185E-02|0.176374672016479"
See also: 
    ACsc Function
    CscH Function
    ACosH Function
    ACotH Function
    ASecH Function
    HArccosec Function
vX: Function returns the principal value of the angle whose hyperbolic cosecant (expressed in radians) is vX. Function returns Null if vX is Null or cannot be fixed up to a real or complex number (as defined by the ComplexStringToReals function). Complex numbers are represented within strings as "R|I" where R is the real part and I is the imaginary part.
Note: Microsoft named this function HArccosec within their Derived Math Function help topic.

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