Re: Doing math on multiple datasources and graphing result (fwd)

On Fri, 11 Jan 2008, Richman, Marc wrote:

> It's the missing exponentiation operator I mentioned in my previous
> post.
> Did that mail not make it to the list?

Marc,

Doh!

Ah, I see it now.   I was totally missing what you were saying at first.

I made another typo earlier and received an "RPN stack underflow" error, 
which is another type of RPN math error.  Not too many references to it in 
the archives.  So, at least it will be in the archives now for all 
posterity just in case someone else hits this again.

I wasn't really sure about the exponential operator (** probably does the 
trick, as you mentioned), so I just did this and it works:

datasource	bytecount
 	rrd-ds-type	= COMPUTE
 	rrd-cdef	= ds1,2,*,32*,ds0,+

Thanks for setting me straight.

Clarke Morledge
College of William and Mary
Information Technology - Network Engineering
Jones Hall (Room 18)
Williamsburg VA 23187

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