BESSELY

BESSELY is a engineering function of MS Excel. It Returns the Bessel function, which is also called the Weber function or the Neumann function.

 
Syntax
BESSELY(x,n)
X   is the value at which to evaluate the function.
N   is the order of the function. If n is not an integer, it is truncated.
Remarks

• If x is nonnumeric, BESSELY returns the #VALUE! error value.
• If n is nonnumeric, BESSELY returns the #VALUE! error value.
• If n < 0, BESSELY returns the #NUM! error value.
• The n-th order Bessel function of the variable x is: [Equation]

Example
The example may be easier to understand if you copy it to a blank worksheet.

How to copy an example

1. Create a blank workbook or worksheet.
2. Select the example in the Help topic.  Note    Do not select the row or column headers.
   
   
   Selecting an example from Help
3. Press CTRL+C.
4. In the worksheet, select cell A1, and press CTRL+V.
5. To switch between viewing the results and viewing the formulas that return the results, press CTRL+` (grave accent), or on the Formulas tab, in the Formula Auditing group, click the Show Formulas button.

1 2	A B Formula Description (Result) =BESSELY(2.5, 1) Weber's Bessel function at 2.5 and an order of 1 (0.145918)