I use to punctuate my equations.

In math mode, when the last "word" is a fraction, I raise the final point using \cdot like in

x = \frac{3}{2} \cdot

so that the "." is at the same height as the fraction bar. So my questions are:

  • Is it good practice?
  • Is there an equivalent of \cdot for the comma?
  • 6
    Is it good practice? No, in my opinion. – egreg Jan 29 '13 at 12:50

I agree with @egreg, the punctuation is part of the sentence structure and so should use the text fonts, if you can't avoid needing sentence punctuation in the display use something like \quad\text{.} (or \quad\text{,}).

  • Are the \quads really necessary? I usually put them with no space or, if it looks bad, with some \; or \: sometimes. – Manuel Jan 29 '13 at 12:56
  • @Manuel No any space that looks good in the circumstances (I don't think any position really looks good but sometimes it can't be avoided) a quad (1em) might be too much I agree. – David Carlisle Jan 29 '13 at 13:00
  • I will avoid them as much as possible as you and @egreg suggest, Thanks :-) – Marco Jan 29 '13 at 14:11

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