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Is it possible do a right vertical bar with OOMath?

Asked by Apteryx

Hello!

I'm trying to insert a right vertical bar in a formula, but can't figure out how in OOMath. Right now, this is what I thought I might do :
X_n = 1 over T X(%oméga) left lline { _{w_0 toward {w over n}} } none
It would be a right vertical bar with, at the right lower position of the bar, the variable change, kind of like this :
 Xn = 1/T X(w) |_w0->w/n
But for some reason OOMath doesn't like the use of '_' (underscore) when nothing precedes it. I've read the wiki with a lot of examples (http://wiki.services.openoffice.org/wiki/Documentation/OOoAuthors_User_Manual/Writer_Guide/Math_commands_-_Reference), but not the one I'm looking for.

Thank you!

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Apteryx (maxco) said : 		#1

It might not be the only or best way to to it, but here's how I've managed to do it :

X_n = 1 over T X(%oméga) left lline `_{ %oméga toward n%oméga_0 } right none

The secret is the backtick before the subscript operator : `_ . The backtick just puts a small space, and pleases OOMath, who doesn't want me to make a subscript from nothing.

If some of you know more elegant or direct approach to do it, please let me know!