RE: A - B

Typically there's some special value you want
in the case where A and/or B don't exist or
are not numeric.

One trick I've used in this case is

<xsl:decimal-format NaN="0"/>

and 

<xsl:variable name="fred" select="format-number(A-B)"/>

This way you get "0" if the result is NaN.

HTH
Michael

> -----Original Message-----
> From: owner-xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> [mailto:owner-xsl-list@xxxxxxxxxxxxxxxxxxxxxx]On Behalf Of pcoustillas
> Sent: Friday, 23 August 2002 1:44 AM
> To: mulberrytech
> Subject:  A - B
> 
> 
> hi, how could i do A-B when A or B does not exist or is absent... 
> because without a test i recieve "NaN". Thanks.
> 
> 
>  XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list
> 
> 


 XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list