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Math Help - Can't get the matrix input working

  1. #1
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    Can't get the matrix input working

    [math ]
    \begin{array}{cccc}
    0.5&0.5&0&0\\
    0.5&0&0.5&0\\
    0.5&0&0&0.5\\
    0&0&0&1
    \end{array}
    [/tex]

    I can't get the Latex matrix to work. What did I do wrong?
    Last edited by novice; September 30th 2009 at 05:26 PM.
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  2. #2
    Super Member

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    Lexington, MA (USA)
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    Hello, novice!

    \begin{array}
    0.5 & 0.5 & 0 & 0 \\
    0.5 & 0 & 0.5 & 0 \\
    0.5 & 0 & 0 & 0.5 \\
    0 & 0 & 0 & 1
    \end{array}

    I can't get the Latex matrix to work. What did I do wrong?
    You must declare the number of columns in the matrix.

    [math ]
    \begin{array}{cccc}
    0.5 & 0.5 & 0& 0 \\
    0.5 & 0 & 0.5 & 0 \\
    0.5 & 0 & 0 & 0.5 \\
    0 & 0 & 0 & 1
    \end{array}
    [/tex]



    <br />
\begin{array}{cccc}<br />
0.5 & 0.5 & 0 & 0 \\<br />
0.5 & 0 & 0.5 & 0 \\<br />
0.5 & 0 & 0 & 0.5 \\<br />
0 & 0 & 0 & 1<br />
\end{array}<br />

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  3. #3
    Banned
    Joined
    Sep 2009
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    502
    Quote Originally Posted by Soroban View Post
    Hello, novice!

    You must declare the number of columns in the matrix.

    [math ]
    \begin{array}{cccc}
    0.5 & 0.5 & 0& 0 \\
    0.5 & 0 & 0.5 & 0 \\
    0.5 & 0 & 0 & 0.5 \\
    0 & 0 & 0 & 1
    \end{array}
    [/tex]



    <br />
\begin{array}{cccc}<br />
0.5 & 0.5 & 0 & 0 \\<br />
0.5 & 0 & 0.5 & 0 \\<br />
0.5 & 0 & 0 & 0.5 \\<br />
0 & 0 & 0 & 1<br />
\end{array}<br />

    Thank you for the help. I am going to try it right away.
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  4. #4
    Banned
    Joined
    Sep 2009
    Posts
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    Quote Originally Posted by novice View Post
    Thank you for the help. I am going to try it right away.
    I copied yours here:

    [math ]
    \begin{array}{cccc}
    0.5 & 0.5 & 0& 0 \\
    0.5 & 0 & 0.5 & 0 \\
    0.5 & 0 & 0 & 0.5 \\
    0 & 0 & 0 & 1
    \end{array}
    [/tex]
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