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Math Help - [SOLVED] Multi-Indexed Sums/Intersection/Unions, etc.

  1. #1
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    [SOLVED] Multi-Indexed Sums/Intersection/Unions, etc.

    I want to do a multi-indexed sum, I have figured out one way to do it but it is ugly. Can someone help me fix the following so that the text is of equal size?
    \sum_{\stackrel{k=1}{k\ne j}}^n A(i,k) \cdot 0_R
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  2. #2
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    Quote Originally Posted by lvleph View Post
    I want to do a multi-indexed sum, I have figured out one way to do it but it is ugly. Can someone help me fix the following so that the text is of equal size?
    \sum_{\stackrel{k=1}{k\ne j}}^n A(i,k) \cdot 0_R
    \sum_{\scriptstyle k=1\atop\scriptstyle k\ne j}^n A(i,k) \cdot 0_R (\sum_{\scriptstyle k=1\atop\scriptstyle k\ne j}^n A(i,k) \cdot 0_R).
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  3. #3
    Super Member flyingsquirrel's Avatar
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    Quote Originally Posted by lvleph View Post
    I want to do a multi-indexed sum, I have figured out one way to do it but it is ugly. Can someone help me fix the following so that the text is of equal size?
    \sum_{\stackrel{k=1}{k\ne j}}^n A(i,k) \cdot 0_R
    Use \substack instead of \stackrel : \sum_{\substack{k=1\\ k\ne j}}^n A(i,k) \cdot 0_R gives \sum_{\substack{k=1\\ k\ne j}}^n A(i,k) \cdot 0_R
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