# Compress equation horizontally

Is there a command that compresses equation horizontally, so that everything is closer together in the horizontal direction?

This is not for a real document but rather just for viewing and playing around.

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Not clear what do you want. Consider adding an MWE, at least specify \documentclass. –  pushpen.paul Jun 10 at 13:39
\small ?........ –  David Carlisle Jun 10 at 13:44
Do you want, e.g., no (or at least less than normal amounts of) space around +, -, and = symbols? –  Mico Jun 10 at 13:44
@DavidCarlisle - Wouldn't \small reduce things vertically as well as horizontally? –  Mico Jun 10 at 13:45
You could use the graphics package to rescale it. –  John Kormylo Jun 10 at 13:46

\documentclass{article}

\def\z{
\par
\noindent X\dotfill X$a+b^{x+y} + \sum_{i=0}^n(x+y)^i + \sqrt{x+y+z} = 2 < a\frac{1+2}{3}b$}

\begin{document}

\z

{\small\z}

\medmuskip=0mu
\thinmuskip=0mu
\thickmuskip=0mu

\z

\medmuskip=-2mu
\thinmuskip=-2mu
\thickmuskip=-2mu
\nulldelimiterspace=-1pt
\scriptspace=0pt
\z
\end{document}

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That's awesome, I'll try it. Thanks. –  Love Learning Jun 10 at 14:08
It's strange that some things (eg things in double-fractions "\frac{\frac{1}{2}}{3}") don't get affected that much by changing the parameters \medmuskip etc. Any reason for this or how one could fix that? –  Love Learning Jun 10 at 14:21
What I'm saying is that if one have an expression of the form \frac{A\times\frac{B}{C}}{D\times\frac{E}{F}} and then one plays around with the parameters \medmuskip etc and the others...A and D changes but B, C, E and F do not since they occur as "double-fractions". Any idea why and how to fix that? –  Love Learning Jun 10 at 14:39
Doesn't \nulldelimiterspace get around fractions, tho? Also you could squeeze a wee bit more with \scriptspace. –  morbusg Jun 10 at 14:39
@morbusg yes thanks, updated –  David Carlisle Jun 10 at 14:52

Probably your equation is a little bit too long. Then you can manually scale it using \scalebox. Certainly, if the scale factor is far from 1, it must look ugly.

\documentclass{article}
\usepackage{graphics}

\begin{document}

$$1<12345667890123456789012345678901234566789012345678901234567890$$

$$\scalebox{0.95}[1]{1<12345667890123456789012345678901234566789012345678901234567890}$$

\end{document}


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\scalebox seems to have some conflict with "aligned" inside "equation". –  Love Learning Jun 10 at 14:26