Re: Matrices
- To: mathgroup at smc.vnet.net
- Subject: [mg82081] Re: Matrices
- From: Jean-Marc Gulliet <jeanmarc.gulliet at gmail.com>
- Date: Thu, 11 Oct 2007 00:25:36 -0400 (EDT)
- Organization: The Open University, Milton Keynes, UK
- References: <fei2sd$qf3$1@smc.vnet.net>
KFUPM wrote:
> I have two matrices
>
> H= {{a,b},{c,d}}
> and
> L ={{1,2},{3,4}}
>
> and I want the element "a" in matrix H to have the corresponding
> numerical values of L , i.e 1 and b --> 2 and so on. I am wondering
> how to do that in the simplest way possible? My actual matrices are
> larger than those i introduce here, i did that just for simplicity.
>
> Any help in this regard is highly appreciated.
Reading more carefully your post, I realized that I may have been too
fast to answer it previously. You want that the symbols a, b, c, and d
hold the value 1, 2, 3, and 4 respectively. You can do that with
MapThread[Set, {H, L}] (I cannot think of anything simpler at the
moment). For instance,
In[1]:= Clear[a, b, c, d]
H = {{a, b}, {c, d}};
L = {{1, 2}, {3, 4}};
MapThread[Set, {H, L}];
{a, b, c, d}
Out[5]= {1, 2, 3, 4}
Best regards,
--
Jean-Marc