sum() applied to a product

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Subject: sum() applied to a product
From: Brian Chrisman <brian.chrisman@xxxxxx>
Date: Tue, 29 Jun 2004 16:36:53 -0700

Uggg... I had some sloppy cut-paste issue in my last post... this is what it should have been, with a real subject line. Sorry...

-----------------------
Okay.. I told someone I could do this in a simple xpath expression

<?xml version="1.0"?>
<a>
 <b>
   <c>2</c>
   <d>4</d>
 </b>
 <b>
   <c>3</c>
   <d>6</d>
 </b>
</a>

Where the xpath was to return (2*4) + (3*6) = 26 I made several attempts with xpath's sum() function (using 1.0) and couldn't get it. I couldn't even come up with an expression that I thought might work.. even though I tried several which I was certain would fail (which did).

Any ideas?

Current Thread
<?xml version="1.0"?> <a> <b> <c>2</c> <d>4</d> Brian Chrisman - Tue, 29 Jun 2004 16:32:21 -0700 Brian Chrisman - Tue, 29 Jun 2004 16:36:53 -0700 <= Mukul Gandhi - Tue, 29 Jun 2004 20:51:46 -0700 (PDT) Michael Kay - Wed, 30 Jun 2004 10:03:35 +0100 Vasu Chakkera - Wed, 30 Jun 2004 11:20:15 +0100

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<?xml version="1.0"?> <a> <b> , Brian Chrisman	Thread	Re: sum() applied to a produc, Mukul Gandhi
<?xml version="1.0"?> <a> <b> , Brian Chrisman	Date	RE: Testing for a following s, Wright, Steve
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