Discussion:
Two horizontal arrows in parallel?
(too old to reply)
George Cox
2003-11-19 19:58:28 UTC
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In TeXnic how can I draw two arrows between two letters?

$$
A\stackrel{\rightarrow}{\rightarrow}B
$$

Is almost what I want, but I want the top arrow to be the same size as
the lower one.

I'd rather not use

\begin{picture}...\put(,){\vector(,){,}}...\end{picture}

Tia
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G.C.
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George Cox
2003-11-19 20:26:33 UTC
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Post by George Cox
In TeXnic how can I draw two arrows between two letters?
$$
A\stackrel{\rightarrow}{\rightarrow}B
$$
Is almost what I want, but I want the top arrow to be the same size as
the lower one.
I'd rather not use
\begin{picture}...\put(,){\vector(,){,}}...\end{picture}
Also

\rightrightarrow produces "Undefined control sequence."
--
G.C.
Note ANTI, SPAM and invalid to be removed if you're e-mailing me.
Ben
2003-11-19 20:30:44 UTC
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"George Cox" wrote

[snip]
Post by George Cox
Also
\rightrightarrow produces "Undefined control sequence."
^ <missing s>

and you need the amssymb package as well.

Ben
--
Real address: first name at robotics dot stanford dot edu
John H Palmieri
2003-11-19 20:44:46 UTC
Permalink
Post by George Cox
Post by George Cox
In TeXnic how can I draw two arrows between two letters?
$$
A\stackrel{\rightarrow}{\rightarrow}B
$$
Is almost what I want, but I want the top arrow to be the same size as
the lower one.
I'd rather not use
\begin{picture}...\put(,){\vector(,){,}}...\end{picture}
Also
\rightrightarrow produces "Undefined control sequence."
I don't know what TeXnic is, but the LaTeX package amssymb defines
the command \rightrightarrows, which I think does what you want.


\documentclass{article}
\usepackage{amssymb}
\begin{document}

$$
A \rightrightarrows B
$$

\end{document}
--
J. H. Palmieri
Dept of Mathematics, Box 354350 mailto:***@math.washington.edu
University of Washington http://www.math.washington.edu/~palmieri/
Seattle, WA 98195-4350
Heiko Oberdiek
2003-11-20 01:11:15 UTC
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Post by John H Palmieri
Post by George Cox
$$
A\stackrel{\rightarrow}{\rightarrow}B
$$
\begin{document}
$$
A \rightrightarrows B
$$
No, no, no, use never $$ in LaTeX.
(Spacing is wrong, fleqn is not working, ...)

Yours sincerely
Heiko <***@uni-freiburg.de>
Giuseppe Bilotta
2003-11-20 09:37:57 UTC
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Post by Heiko Oberdiek
Post by John H Palmieri
Post by George Cox
$$
A\stackrel{\rightarrow}{\rightarrow}B
$$
\begin{document}
$$
A \rightrightarrows B
$$
No, no, no, use never $$ in LaTeX.
(Spacing is wrong, fleqn is not working, ...)
Unless, of course, you use the Nath package which recats $ and makes
sure that $$ is equal to \[ or \], as needed.
--
Giuseppe "Oblomov" Bilotta

Can't you see
It all makes perfect sense
Expressed in dollar and cents
Pounds shillings and pence
(Roger Waters)
Ben
2003-11-19 20:25:12 UTC
Permalink
Post by George Cox
$$
A\stackrel{\rightarrow}{\rightarrow}B
$$
\usepackage{amssymb}
...
A \rightrightarrows B

HTH,
Ben
--
Real address: first name at robotics dot stanford dot edu
George Cox
2003-11-19 20:33:32 UTC
Permalink
Post by Ben
Post by George Cox
$$
A\stackrel{\rightarrow}{\rightarrow}B
$$
\usepackage{amssymb}
...
A \rightrightarrows B
Thanks! It was the \usepackage{amssymb} that I was missing.
--
G.C.
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