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How to produce the latex symbol like \overline{X} ?

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I used to use the function "textoidl" to generate latex symbols in
IDL, but I found it could not generate "bar-x", which is generated
through "\overline{x}" in latex. The IDL forum said "IDL> xyouts, 0.5,
0.5,'!S!A-!R!NX !S!A-!R!NY !S!A-!R!NZ', /NORMAL" can display a bar-X,
bar-Y and bar-Z in sequence. But are there any easier ways? Usually I
still have to do some other modulations to the symbol, so if only
there is a  function like textoidl!

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I also want to know. For example,two characters like \overline{xy} and \overline{x^2}, thanks!
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On Feb 11, 5:12=A0am, xqinshan <u...@compgroups.net/> wrote:
> I also want to know. For example,two characters like \overline{xy} and \o=
verline{x^2}, thanks!
>
> ---
> frmsrcurl:http://compgroups.net/comp.lang.idl-pvwave/How-to-produce-the-l=
atex-s...

37ebeded82faf8#

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