I like to change a/b to be
a
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b
how to do that?
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yes,I only can use / now.– samJun 18, 2011 at 13:34
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5See my answer below. But really, since you ask this very elementary question, I guess you do not have access to any form of documentation? You need to remedy that. LaTeX is too complex to use without documentation.– Harald Hanche-OlsenJun 18, 2011 at 13:36
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Or have a look at this one: en.wikibooks.org/wiki/LaTeX– Harald Hanche-OlsenJun 18, 2011 at 13:42
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2 Answers
\frac{a}{b}, in math mode of course.
answered Jun 18, 2011 at 13:34
For fractions use $\frac{a}{b}$, like Harald Hanche-Olsen said. For inline-math I still like fractions that use / because a \frac is often too tall. Here is a definition for a nicer fraction that uses /:
\def\nicefrac#1#2{\leavevmode%
\raise.5ex\hbox{\small #1}%
\kern-.1em/\kern-.15em%
\lower.25ex\hbox{\small #2}}
It is used like this:
\nicefrac{a}{b}
answered Jun 18, 2011 at 13:39
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The
nicefracpackage, or theunitspackage, also offer a\nicefraccommand. Jun 18, 2011 at 13:46 -
5
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Is this kind of command can be used on MathJaX? Because I can't try success on Statistical Analysis board.– samJun 18, 2011 at 13:52
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You can also use $\dfrac{a}{b}$ if you want a larger fraction in inline math mode. Jun 18, 2011 at 14:51
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1@Peter: using
\dfracin inline math is not very good because it changes the space between lines and by default LaTeX uses smaller fractions in inline math just to avoid this.– SpikeJun 18, 2011 at 15:16