## Re: [xsl] how calculate sum(x*y)

 Subject: Re: [xsl] how calculate sum(x*y) From: Andrey Solonchuk Date: Mon, 7 Oct 2002 12:04:01 +0300
```Hello Jarno,

Monday, October 7, 2002, 11:25:50 AM, you wrote:

JEnc> Hi,

>> how calculate sum(x*y) ??
>>
>> IF i try use sum() it say that need only node-list as argument....
>>
>> I have xml
>> <root>
>>   <data>
>>    <x>2</x>
>>    <y>3</y>
>>   </data>
>>   <data>
>>    <x>5</x>
>>    <y>6</y>
>>   </data>
>>   .....
>> <root>

JEnc> Write a recursive template, that goes through all the data elements, summing the multiplication result to previous result sum, i.e.

JEnc> template name=sum
JEnc>   param name=node-set
JEnc>   param name=sum

JEnc>   if count(\$node-set') = 0
JEnc>   then
JEnc>     value-of select=\$sum
JEnc>   else
JEnc>     call-template name=sum
JEnc>       with-param name=node-set select=\$node-set[not(position() = 1)]
JEnc>       with-param name=sum select=\$sum + \$node-set/x * \$node-set/y

JEnc> Dimitri probably has some suitable function for the job, see [http://fxsl.sourceforge.net/].

JEnc> Cheers,

JEnc> Jarno - Grendel: Human Saviour

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

I try now use function "nodeset" from xalan namespace to build new nodeset
with result of calculation x*y and then apply function sum for this
tree.
can you compare this two variants, what variant more likely to use ?

--
Best regards,
Andrey                            mailto:solo@xxxxxxxxxxxxxx

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

```
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