Very simple problem, but very confusing. When I type
\left( \frac{\partial f}{\partial x } \right)^2
I get smaller parentheses but when I type the same thing but with y instead of x, i.e.
\left( \frac{\partial f}{\partial y } \right)^2
I get larger ones... what's up with that? Is it a known problem or do I have to supply more information?
UPDATE (after reading some comments):
This difference isn't present if the expression is written by itself, but only if it's in the denominator, i.e. when I write
\frac{...something...} { \left( \frac{\partial f}{\partial x } \right)^2 + \left( \frac{\partial f}{\partial y} \right)^2}
I get parentheses of different size!
y
adds more vertical space and the parenthesis in bigger. Are you looking for a solution to make them the same size? – karlkoeller Aug 14 '13 at 8:27\big(
and\big)
, instead of\left(
and\right
. See tex.stackexchange.com/a/38870/18228 for more size options. – Herr K. Aug 14 '13 at 8:41\biggl
and\biggr
seem to be the more appropriate in your case). As an alternative you can put\vphantom{y}
next to thex
in your first equation. – karlkoeller Aug 14 '13 at 8:51