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Formula Functions / Functions A to C / BESSELK
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    BESSELK
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    This function calculates the modified Bessel function of the second kind evaluated for purely imaginary arguments.

    Syntax

    BESSELK(value,order)

    Arguments

    This function has these arguments:

    Argument Description
    value Value at which to evaluate the function
    order Number representing the order of the function; if it is not an integer, it is truncated

    Remarks

    This function is also called the Neumann function. If value or order is nonnumeric then a #Value! error is returned. If order is less than 0 then the #NUM! error is returned.

    Data Types

    Accepts numeric data for both arguments. Returns numeric data.

    Examples

    BESSELK(A4,D5)

    BESSELK(R4C1,R5C4)

    BESSELK(1.85,2) gives the result 0.32165379

    Version Available

    This function is available in product version 1.0 or later.

    See Also

    BESSELJ | BESSELY | Engineering Functions