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XLeratorDB/engineering Online Documentation

SQL Server IMSUB function


 
Updated: 27 August 2010

Use IMSUB to return the difference between 2 complex numbers in x + yi or x + yj text format. The difference between 2 complex numbers is computed as:
 
IMSUB
Syntax
SELECT [wctEngineering].[wct].[IMSUB] (
   <@inumber1, nvarchar(4000),>
 ,<@inumber2, nvarchar(4000),>)
Arguments
@inumber1
is the first value used in evaluating the function. @inumber1 is an expression of type varchar or of a type that can be implicitly converted to varchar and must be in the format x + yi or x + yj, where x is a real number that can be converted to float and yi (or yj) is an imaginary number, where the y part can be converted to float.
@inumber2
is the second value used in evaluating the function. @inumber2 is an expression of type varchar or of a type that can be implicitly converted to varchar and must be in the format x + yi or x + yj, where x is a real number that can be converted to float and yi (or yj) is an imaginary number, where the y part can be converted to float.
Return Types
varchar(4000)
Remarks
·         Use COMPLEX to convert real and imaginary coefficients into a complex number
Examples

select
wct.IMSUB('7+24i','6-25i')

This produces the following result
-------------------------
1+49i
 

(1 row(s) affected)



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