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upper limit of double integral not aligned correctly
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Karl Ratzsch
Jul 31, 2015, 9:06:51 AM7/31/15
to
Hi,
in amsmath, the limits of a single integral get aligned beautifully on
the lower and upper end of the integral sign.
\int\limits_{a}^{a}
However with a double (triple) integral, the upper limit seems to get
centered over the lower end of the sign, which looks rather ugly. I have
to move it with a few tilde spacers.
\iint\limits_{a}^{~~a}
Is that a bug or have i just misunderstood the correct usage? It doesn't
matter whether the upper or lower limit is given first.
== example ==
\documentclass{article}
\usepackage{amsmath}
\usepackage{amssymb}
\begin{document}
\begin{equation}
\iiint\limits_{a}^{b}
\end{equation}
\begin{equation}
\iiint\limits^{a}_{b}
\end{equation}
\end{document}
in amsmath, the limits of a single integral get aligned beautifully on
the lower and upper end of the integral sign.
\int\limits_{a}^{a}
However with a double (triple) integral, the upper limit seems to get
centered over the lower end of the sign, which looks rather ugly. I have
to move it with a few tilde spacers.
\iint\limits_{a}^{~~a}
Is that a bug or have i just misunderstood the correct usage? It doesn't
matter whether the upper or lower limit is given first.
== example ==
\documentclass{article}
\usepackage{amsmath}
\usepackage{amssymb}
\begin{document}
\begin{equation}
\iiint\limits_{a}^{b}
\end{equation}
\begin{equation}
\iiint\limits^{a}_{b}
\end{equation}
\end{document}
GL
Jul 31, 2015, 1:52:54 PM7/31/15
to
Le 31/07/2015 15:06, Karl Ratzsch a écrit :
> Hi,
>
> in amsmath, the limits of a single integral get aligned beautifully on
> the lower and upper end of the integral sign.
>
> \int\limits_{a}^{a}
>
> However with a double (triple) integral, the upper limit seems to get
> centered over the lower end of the sign, which looks rather ugly. I have
> to move it with a few tilde spacers.
>
> \iint\limits_{a}^{~~a}
>
> Is that a bug or have i just misunderstood the correct usage?
The super and sub scripts are as you say centered horizontally
> Hi,
>
> in amsmath, the limits of a single integral get aligned beautifully on
> the lower and upper end of the integral sign.
>
> \int\limits_{a}^{a}
>
> However with a double (triple) integral, the upper limit seems to get
> centered over the lower end of the sign, which looks rather ugly. I have
> to move it with a few tilde spacers.
>
> \iint\limits_{a}^{~~a}
>
> Is that a bug or have i just misunderstood the correct usage?
on top and at the bottom of the symbol. How (the hell) could you
think of it as a bug ?
It doesn't
> matter whether the upper or lower limit is given first.
Paweł Wlaź
Aug 1, 2015, 6:49:53 AM8/1/15
to
On Fri, 31 Jul 2015, Karl Ratzsch wrote:
> Hi,
>
> in amsmath, the limits of a single integral get aligned beautifully on
> the lower and upper end of the integral sign.
>
> \int\limits_{a}^{a}
>
> However with a double (triple) integral, the upper limit seems to get
> centered over the lower end of the sign, which looks rather ugly. I have
> to move it with a few tilde spacers.
>
> \iint\limits_{a}^{~~a}
>
> Is that a bug or have i just misunderstood the correct usage? It doesn't
> matter whether the upper or lower limit is given first.
\iint\limits_{a}^{b} makes no sense as it is double integral over
onedimensional set.
So in your example it is rather \iint\limits_{D} or just \iint_{D}.
D is a set in R^2.
Of course double integrals are sometimes calculated as an iterated
integral by means of *integrals of one variables* (\int). Beautifully
aligned.
--
Pawel Wlaz
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