# Is there a command of the type “\blabla” where I can write \mbox{div}(F)

Maybe my question is easy. When I want to write

$$\mbox{div}(F) = \sum_i (F_i)_{x_i}$$


I have to type \mbox{div}(F), which is cumbersome.

Is there a way to define a command \blabla to produce \mbox{div}(F)?

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Welcome to TeX.SX! Does tex.stackexchange.com/questions/671/… help? If it does, then we can close this question as duplicate; otherwise, please add to your question some more details. – egreg Nov 7 '12 at 18:36

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