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BesselK Method
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WorksheetFunction.BesselK Method (Excel)

Returns the modified Bessel function, which is equivalent to the Bessel functions evaluated for purely imaginary arguments.

expression .BesselK(Arg1, Arg2)

expression A variable that represents a WorksheetFunction object.

Parameters

Name

Required/Optional

Data Type

Description

Arg1

Required

Variant

the value at which to evaluate the function.

Arg2

Required

Variant

the order of the function. If n is not an integer, it is truncated.

Return Value

Double

  • If x is nonnumeric, BesselK generates an error value.

  • If n is nonnumeric, BesselK generates an error value.

  • If n < 0, BesselK generates an error value.

  • The n-th order modified Bessel function of the variable x is: awfbeslk_ZA06051112where Jn and Yn are the J and Y Bessel functions, respectively.

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