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How do I render a letter with a single dot above it?

I see \[DoubleDot] and \[TripleDot] are readily available, but what about a single dot?

Specifically I am after Q dot, which is used in thermodynamics. If it helps, here is some background on Unicode and Q dot.

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2 Answers

up vote 9 down vote accepted

Use OverDot

ref/OverDot in the documentation (but one of those cases where you need to know what you want in order to be able to enter it)

OverDot[Q]

enter image description here

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Thanks. Strange this isn't in the Textual Forms panel of the Writing Assistant Palette, nor the See Also section of DoubleDot or TripleDot. Sorry it was so simple – my Google Fu failed me. –  duozmo Feb 6 '12 at 5:11
    
as per Vitaly's screen grab below, the palette has a template for overscript boxes which is what this actually is. –  Mike Honeychurch Feb 6 '12 at 5:41
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In addition to Mike's post two things you can do:

  • Type "Q" then press Ctrl+& and then type "." to enter with a shortcut.

  • Use palette - there are actually a few you can use. For example go menu Palette >> Other >> Basic Math Input . This will bring a neat concise palette of frequently used input forms. Bottom left corner has what you need.

enter image description here

Little, but convenient things, - I use it often myself ;)

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