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XLeratorDB/engineering Online Documentation

SQL Server BESSELY function


 
Updated: 27 August 2010

Use BESSELY function to calculate the Bessel function of the first kind Yv(z). For non-integer v, the BESSELY function is defined by
 
BESSELY
In the case of integer order n, the function is defined by taking the limit as non-integer v tends to n
 BESSELY
Syntax
SELECT [wctEngineering].[wct].[BESSELY] (
   <@x, float,>
 ,<@n, float,>)
Arguments
@x
is the value at which to evaluate the function. @x is an expression of type float or of a type that can be implicitly converted to float
@n
is the order of the Bessel function. @n is an expression of type float or of a type that can be implicitly converted to float. 
Return Types
float
Remarks
·         @n is truncated to zero decimal places.
·         If @n is less than zero, BESSELY returns an error
Examples

select
wct.BESSELY(2.5,1)

This produces the following result

----------------------
0.145918137484894
 

(1 row(s) affected)



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