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BI Function
Math Engineering Class

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

Evaluate the Bairy function (the Airy function of the second kind).

Examples: 
    BI(-5.0) = -0.138369134901601
    BI(-0.5) = 0.380352659751054
    BI(+0.0) = 0.614926627446001
    BI(+0.5) = 0.854277043103155
    BI(+5.0) = 657.792044171171
See also: 
    BIE Function
    AI Function
    DBI Function
vX: Function returns Null if vX is Null or cannot be fixed up to a Double precision floating point number.

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