Archived posting to the Leica Users Group, 2009/01/30

[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]

Subject: [Leica] Need help with formulae
From: jayanand at gmail.com (Jayanand Govindaraj)
Date: Fri Jan 30 21:16:13 2009
References: <20090130210804.1FE9E778@resin18.mta.everyone.net>

http://en.wikipedia.org/wiki/Geometric_progression

Cheers
Jayanand

On Sat, Jan 31, 2009 at 10:38 AM, Alastair Firkin <afirkin@afirkin.com>wrote:

> G'day all,
>
> does anyone know a formula which allows you to calculate a value in a
> geometric progression. For example if a number doubles 2.8 times in 10
> years, what will that number be. At the moment the only way I can do it is
> "long hand" ie if 10 is going to double 2.8 times then it would be 10
> doubled to 20, twenty doubled to 40 then add 80% of the next double ie 32
> plus the 40 equals 72, BUT is there a formula, so I can put in other times
> of doubling.
>
> Troubled
>
> Alastair
>
> _______________________________________________
> Leica Users Group.
> See http://leica-users.org/mailman/listinfo/lug for more information
>

In reply to: Message from afirkin at afirkin.com (Alastair Firkin) ([Leica] Need help with formulae)