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From: dimanag78@gmail.com
Newsgroups: comp.soft-sys.math.mathematica
Subject: Re: matrix manipulation
Date: Wed, 12 Mar 2014 07:29:33 +0000 (UTC)
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Xref: csiph.com comp.soft-sys.math.mathematica:16645

> Hello to all.
>
>
>
> I have the following 6x6 matrix
>
>
>
> Table[Subscript[C, k, j][i], {k, 1, 6}, {j, 1, 6}]
>
>
>
> I want this matrix to be symmetric, that is,
>
> Subscript[C, k, j][i] = Subscript[C, j, k][i] for j != k.
>
>
>
> In other words I want the matrix
>
>
>
> {{Subscript[C, 1, 1][i], Subscript[C, 1, 2][i], Subscript[C, 1, 3][i],
>
>    Subscript[C, 1, 4][i], Subscript[C, 1, 5][i],
>
>   Subscript[C, 1, 6][i]}, {Subscript[C, 1, 2][i],
>
>   Subscript[C, 2, 2][i], Subscript[C, 2, 3][i], Subscript[C, 2, 4][i],
>
>    Subscript[C, 2, 5][i],
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>   Subscript[C, 2, 6][i]}, {Subscript[C, 1, 3][i],
>
>   Subscript[C, 2, 3][i], Subscript[C, 3, 3][i], Subscript[C, 3, 4][i],
>
>    Subscript[C, 3, 5][i],
>
>   Subscript[C, 3, 6][i]}, {Subscript[C, 1, 4][i],
>
>   Subscript[C, 2, 4][i], Subscript[C, 3, 4][i], Subscript[C, 4, 4][i],
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>    Subscript[C, 4, 5][i],
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>   Subscript[C, 4, 6][i]}, {Subscript[C, 1, 5][i],
>
>   Subscript[C, 2, 5][i], Subscript[C, 3, 5][i], Subscript[C, 4, 5][i],
>
>    Subscript[C, 5, 5][i],
>
>   Subscript[C, 5, 6][i]}, {Subscript[C, 1, 6][i],
>
>   Subscript[C, 2, 6][i], Subscript[C, 3, 6][i], Subscript[C, 4, 6][i],
>
>    Subscript[C, 5, 6][i], Subscript[C, 6, 6][i]}}
>
>
>
>
>
> Thank you very much, in advance, for yor help.

Thank you all for your replies.
Dimitris