Re: How to Multiply a Sequence of #s that depends on the previous #

• To: mathgroup at smc.vnet.net
• Subject: [mg125093] Re: How to Multiply a Sequence of #s that depends on the previous #
• From: David Reiss <dbreiss at gmail.com>
• Date: Tue, 21 Feb 2012 06:13:04 -0500 (EST)
• Delivered-to: l-mathgroup@mail-archive0.wolfram.com
• References: <jhstr1\$nj5\$1@smc.vnet.net>

```One approach is to use FoldList:

In[1]:= FoldList[Times, 50, {1.10, 1.15, 1.20, 1.35}]

Out[1]= {50, 55., 63.25, 75.9, 102.465}

In[2]:= FoldList[Times, 50, {a, b, c, d}]

Out[2]= {50, 50 a, 50 a b, 50 a b c, 50 a b c d}

--David

On Feb 20, 2:47 am, Clutch <clutchderivat... 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?

```

• Prev by Date: Re: How to Multiply a Sequence of #s that depends on the previous #
• Next by Date: Re: How to Multiply a Sequence of #s that depends on the previous #
• Previous by thread: Re: How to Multiply a Sequence of #s that depends on the previous #
• Next by thread: Re: How to Multiply a Sequence of #s that depends on the previous #