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Math Help - quick question about partial sign

  1. #1
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    quick question about partial sign

    He guys,

    In some books they use  \partial_{x} f, do they mean the partial derivatie of f by this?
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  2. #2
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    I would think so although it is usually written as \displaystyle f_x or just \displaystyle \frac{\partial{f}}{\partial{x}}
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