Excel BESSELK function

Function              BESSELK

Description        The Excel BESSELK function calculates the modified Bessel functions, Kn(x), which are also known as the hyperbolic Bessel Functions. These are the equivalent of the Bessel functions, evaluated for purely imaginary arguments.

Syntax                  BESSELK( x, n )

X             Required. The value at which to evaluate the function.

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

Example:

Usage Notes:

  • If X is non-numeric then it returns #VALUE! error.
  • If n is non-numeric then it returns #VALUE! error.
  • If n < 0 then it returns #NUM! error.