Your are right - I realized this as I dropped of the sleep last night!
cheers
--
Bernard

"Bernd P" wrote in message
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Hello Bernard,

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In your case r = 1.1 (a 10% increase each time) and n=9 (you have 10
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n=10 (you have 10 numbers) but highest exponent is 9 (=10 - 1)

SCNR,
Bernd