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Inv Function
Math Complex Class

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

"Inverse"
Reciprocal of a real or complex number.

Examples: 
    Inv(4) = .25
    Inv("5|0") = .2
    Inv("0|-6") = "0|0.166666666666667"
    Inv("-7|-8") = "-6.19469026548673E-02|7.07964601769911E-02"
    IsNull(Inv(Null)) = True
See also: 
    Div Function
vX: The number whose reciprocal is to be returned. 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.

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