Re: How to Multiply a Sequence of #s that depends on the previous #
- To: mathgroup at smc.vnet.net
- Subject: [mg125103] Re: How to Multiply a Sequence of #s that depends on the previous #
- From: Bob Hanlon <hanlonr357 at gmail.com>
- Date: Tue, 21 Feb 2012 06:16:33 -0500 (EST)
- Delivered-to: l-mathgroup@mail-archive0.wolfram.com
list = {a, b, c, d};
FoldList[Times, init, list] // Rest
{a init, a b init, a b c init, a b c d init}
FoldList[Times, init*First[list], Rest[list]]
{a init, a b init, a b c init, a b c d init}
% == %%
True
Bob Hanlon
On Mon, Feb 20, 2012 at 2:46 AM, Clutch <clutchderivative at gmail.com> wrote:
> I have a list of #s : 1.10, 1.15, 1.20, 1.35.
>
> I start off with 50 and the first # is 50 * 1.10.
> The second # is the first # * 1.15.
> The third # is the second # * 1.20.
> The fourth # is the third # * 1.35.
>
> I want to maintain a list of these #s.
> How can this be done efficiently in Mathematica without running for loops?
>