----- Original Message ----
> From: Uwe Stöhr <[email protected]>
> To: Gustavo Goretkin <[email protected]>
> Cc: [email protected]
> Sent: Sun, 28 November, 2010 20:52:45
> Subject: Re: Integral sign stretch/expand to fit integrand
>
> Am 28.11.2010 07:05, schrieb Gustavo Goretkin:
> This works for me without using special commands, see attached.
>
> regards Uwe
This is a larger integral symbol than you would get inline, but it gets no
larger. For instance try it on \frac{\dfrac{1}{x}}{\dfrac{2}{x}}.
>
> > How could I make an integral sign stretch so that its height is close to
> > the
>height of the integrand?
> >
> > For example, see http://oi51.tinypic.com/qnpedi.jpg
>
For those that aren't aware: this is a screenshot of an equation typeset in
MathType, AKA Microsoft Equation Editor (until Microsoft developed something
half-decent in Office 2007).
Why you shouldn't be doing this:
* If the integrand is only just too big (like \frac{1}{x} in some fonts),
there's no need for the integral symbol to match it. The integral symbol is
not
a curvy delimiter, but instead a symbol in its own right, a deformation of the
letter S. Would you also like an extended sigma if you're summing something
tall?
* If the integrand is very big, it would probably be better to write it out
more
horizontal (like Tall1/Tall2 rather than \frac{Tall1}{Tall2}), or even better
define parts of it in separate displayed equations so that it becomes less
complicated. (e.g. if integrating a big matrix, define it to be M(x) then just
\int M(x)\,dx).
If you must do this according to the TeX FAQ the correct solution is to use
exscale. This simply scales the whole symbol up. If you want an extensible
vertical middle piece, there are some other solutions on this webpage, none of
which work particularly well (according to that page):
http://relatedterms.com/ViewThread.aspx?t=986102
