how can I make equations smaller in TeX?
Solution 1
If you like the results you're getting from $ eqn $, you can get this by putting \textstyle in your equation environment.
To suppress numbering use "*": \begin{equation*} ... \end{equation*}
. You can also use \notag on individual equations in an environment (e.g. align).
Solution 2
but then it's displayed in a way that's too large to fit in the margin.
You're not trying to write the proof of Fermat's Last Lheorem, are you? :-)
Assuming you meant that the equation overflows to the margins, and also assuming you want to avoid that rather than change the font, I would suggest amsmath. For example, you can write a long equation like this:
\begin{multline}
A = \lim _{n\rightarrow \infty }\Delta x\left( a^{2}+\left( a^{2}+2a\Delta x
+\left( \Delta x\right) ^{2}\right)\right.\\
+\left( a^{2}+2\cdot 2a\Delta x+2^{2}\left( \Delta x\right) ^{2}\right)\\
+\left( a^{2}+2\cdot 3a\Delta x+3^{2}\left( \Delta x\right) ^{2}\right)\\
+ \ldots\\
\left.+\left( a^{2}+2\cdot (n-1)a\Delta x +(n-1)^{2}\left( \Delta x\right) ^{2}\right) \right)\\
= \frac{1}{3}\left( b^{3}-a^{3}\right)
\end{multline}
(Example taken from Mathmode: a must if you want to typeset good math.) There are many other environments in amsmath: align
and variations of it for aligning across lines, gather
to gather multiple equations together, multline
(note, no i
) for a multi-line equation, split
, etc.
To answer your second other question: you can get a non-numbered equation by using the starred form of the equation environment:
\begin{equation*}
E = mc^2
\end{equation*}
Solution 3
Shall I understand it that displaymath
environment (called by equation
environment) typesets your math too wide but environment math
(called by $formulae$
fo example) typesets it right?
If so, there are commands that can switch its argument's displaymath
mode to math
mode and vice versa.
For inducing math
style in displaymath
you can use \textstyle{}
command.
For inducing displaymath
style in math
you can use \displaystyle{}
command.
So for your task:
\begin{equation}\textstyle{
neverending formulae
}\end{equation}
I hope it will do what you want.
Admin
Updated on June 12, 2022Comments
-
Admin about 2 years
how can I make equations smaller in TeX? For example, I want to use the equation environment as follows:
\begin{equation} long equation here \end{equation}
but then it's displayed in a way that's too large to fit in the margin. I get around this by using:
$ long equation here $
but then I don't get the automatic numbering and all the other nice features of equation environments.
secondly, how can I suppress equation numbering for specific equations in \begin{equation}\end{equation}? I'd like equations with no displayed numbers to not count to the total (so if the first 3 equations' numbers suppressed, but the 4th isn't, the 4th equation should be labeled "1").
thanks.
-
Admin over 14 yearsThank you for your reply. the multline approach does not work in my case though, because the sum I am trying to break up is actually in the numerator of a '\frac'. i.e., i have something like: \begin{multline} \frac{Very long sum here that spans outside margins}{other sum} \end{multline} and the multline environment will not let me place "\\" in the numerator of \frac. any ideas on how to break up such long equations inside frac?
-
Alok Singhal over 14 yearsIs your denominator short? Maybe you can write your equation as (Numerator)(denominator)^{-1}, or (Numerator)/(denominator), or
\frac{part1}{denominator}+...+\frac{partN}{denominator}
. I am not sure which is worse: not being able to use a nice\frac{N}{D}
or using a small font only for one equation. -
Alok Singhal over 14 years@user24837: Also, see pages 53 and 54 of Mathmode for examples of long fractions.