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### Can \left( … \right) be instructed to ignore nonexistent upper or lower limits of summation? [duplicate]

In a formula such as $\left( \sum_{n\in\mathbf{N}} \right)$ the left and right delimiters extend not only downwards to cover the lower limit of the sum, but upwards an equal amount as if to ...
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### Bad vertical centering in an equation [duplicate]

Possible Duplicate: Vertically asymmetric size variation for parentheses I'm trying to typeset something like the following: x = f\Biggl[\sum_{i\in\Omega} w_i\bigl(g(b_i)-...
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### \mid, | (vertical bar), \vert, \lvert, \rvert, \divides

What's the difference between the different vertical bars? $S = \{\, x \mid x \not= 17 \,\}$ $a \vert b$ implies $a \leq b$ when $b \ne 0$ $a|b$ implies $a \leq b$ when $b \ne 0$ $\lvert x \rvert$ is ...
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### Turn off locally one package

In the following code, I would like to show two different formatting styles: one using the package nath output, and another showing the default output. How can I do that? % Source : http://tex....
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### Dynamically sized brackets/parentheses for text

I'd like to have a large bracket that shows a relationship from one set of text to another, like this: Nam dui ligula, fringilla a, ) euismod sodales, sollicitudin ) vel, wisi. Morbi auctor ...
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### Tree in a growing bracket

I try to enclose my syntax tree in a growing double bracket using \left \llbracket ... \right \rrbracket. However, the tree always sits in the lower half and leaving the upper half blank, which is ...
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### Oversized parentheses around xymatrix

This must have been asked somewhere here before, but I cannot seem to find it. I am using \left( and \right) around an xymatrix, but the parenthesis are far too big; with the following code; \...
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### Continuously-sizable brackets?

It often frustrates me that TeX only supplies a small set of bracket sizes to choose from (or rather, the default fonts do.) Has anybody written a package that provides continuously-sizable brackets, ...