The 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)

Arguments

Argument Description
x The value at which to evaluate the function
n The order of the function. If n is not an integer, it is truncated

Examples

  A B C
1 Formula Result Notes
2 =BESSELY(2.5, 1) 0.145918138 Weber’s Bessel function at 2.5 and an order of 1

Common Function Error(s)

Problem What went wrong
#VALUE! Occurs if any of the supplied arguments are non-numeric
#NUM! Occurs if either:

  the supplied value of x is ≤ 0
  the supplied value of n is < 0
#NAME? Occurs when Analysis ToolPak add-in is not enabled