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Re: Using values from inside a matrix for a new row

  • To: mathgroup at smc.vnet.net
  • Subject: [mg122380] Re: Using values from inside a matrix for a new row
  • From: DrMajorBob <btreat1 at austin.rr.com>
  • Date: Thu, 27 Oct 2011 06:28:56 -0400 (EDT)
  • Delivered-to: l-mathgroup@mail-archive0.wolfram.com
  • References: <201110262140.RAA00149@smc.vnet.net>
  • Reply-to: drmajorbob at yahoo.com

NestList[# + 1 &, {1, 2, 3}, 2]

{{1, 2, 3}, {2, 3, 4}, {3, 4, 5}}

Bobby

On Wed, 26 Oct 2011 16:40:58 -0500, Michelle A <hfvballgurl33 at gmail.com>  
wrote:

> Hello,
> I am new to Mathematica and I am trying to create an array of values
> that uses info from the line above.  I'm thinking of it like how Excel
> would do it but I'm not sure how to go about it in Mathematica.  I've
> been getting the RecursionLimit error when I try to call an earlier
> element of the array.
>
> Here is what I'm thinking in a simplified form:
>
> Say I simply want to add a constant (1 here) to each element above. So
> I want my answer to be like this:
>
> 1 2 3
> 2 3 4
> 3 4 5
>
> f = {{1, 2, 3}, {f[[1, 1]] + 1, f[[1, 2]] + 1, f[[1, 2]] + 1}} and
> continue to have it grow to be a 10x3 matrix.  I know I'll need some
> i's and j's but I can't get it to work.  Do I need to initialize an
> array or make a loop to just add one row at a time in a separate
> step?
>
> Any help is greatly appreciated.  Thank you
>
>


-- 
DrMajorBob at yahoo.com



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