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Math Help - Create sum expression from algebraic expression

  1. #16
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    Re: Create sum expression from algebraic expression

    Oh ok I see my mistake now, I was confused on the use of the subscripts. Now I understand how to write them correctly. Thank you very much, I really appreciate it.
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  2. #17
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    Re: Create sum expression from algebraic expression

    how come I cannot set the upper script 12?

    \sum_{i=1}^{12}80000x=960,000
    Last edited by silver163; January 15th 2012 at 09:47 AM.
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  3. #18
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    Re: Create sum expression from algebraic expression

    You need to wrap the upper limit {12} in curly braces in LaTeX.

    Again, this is not an equation, so I can't say if it true or false. This thread is becoming big, and I am having trouble getting your implied references to earlier posts.
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  4. #19
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    Re: Create sum expression from algebraic expression

    = 780000
    = 680000
    = 570000

    Are any of those statements true?
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  5. #20
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    Re: Create sum expression from algebraic expression

    The first two are true for x = 10000. The third becomes true if you replace 8x by 6x, as in post #8.
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  6. #21
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    Re: Create sum expression from algebraic expression

    thanks i appreciate it.
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