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[Henri Lesourd <address@hidden>]

Kamaraju Kusumanchi wrote:

> Hi
>  I want to represent a matrix by a letter say M with two underscores
> right below it. How can I write two underscores just below the letter
> M?
>
>  
The following way works (only for one letter) :
[[
  <with|mode|math|<superpose|M|<rsub|<rsub|<rsub|\<longequal\>>>>>>
]]

(use Mathematics->Script->Script below, then use two '=' for the
below part, nothing on the above part, then superpose this and
your letter).

>  Similarly I also want to represent a vector by a letter say 'b' with
> one underscore right below it. How can I do that? I tried, Mathematics
> -> Accent below -> bar . But the problem with that is that the bar
> appears somewhat to the left of b. I want the bar right below b
> without any separation.
>
>  
What about <underline|x> ? There is also Accent below->wide bar.