Excel BESSELY function

Function              BESSELY

Description        The Excel BESSELY function returns the Bessel function, Yn(x), (also known as the Weber function or the Neumann function), for a specified order and value of x.

Syntax                  BESSELY( 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.