[Tex/LaTex] Text size to match font size in inline fraction

fontsizefractions

Suppose I type $\frac{\text{foo}}{2}$ to produce a fraction with the text "foo" in the numerator. The "foo" text is smaller than the body text of the document if the math is inline.

Now I would like to type "bar" in plain text and have it be the same font size as the "foo" in the fraction. Is there a way to achieve this that works independently of the font packacge being used?

Four fouriernc, \small{bar} and \footnotesize{bar} look too big. \scriptsize looks too small.

To be clearer about my specific application, here is an MWE:

\documentclass{article}
\usepackage{amsmath,pgfplots,fouriernc}
\begin{document}
    \begin{tikzpicture}
    \begin{axis}[axis lines=left,clip=false]
    \addplot{x} node [right] {$\frac{\text{foo}}{2}$};
    \addplot{x/2} node [right] {\scriptsize foo};
    \end{axis}
    \end{tikzpicture}
\end{document}

Which produces the following plot. Note that the text in the labels appears to be different in size.

To confirm this, I check the size of the two labels in photoshop:

Update: I realise that this indeed works in computer modern, but not for fouriernc, which is the font I am using. I changed the question accordingly.

Best Answer

Use \scriptsize for both and \dfrac.

\documentclass{article}
\usepackage{amsmath,pgfplots,fouriernc}
\begin{document}
    \begin{tikzpicture}
    \begin{axis}[axis lines=left,clip=false]
    \addplot{x} node [right] {\scriptsize$\dfrac{\text{foo}}{2}$};
    \addplot{x/2} node [right] {\scriptsize foo};
    \end{axis}
    \end{tikzpicture}
\end{document}

Here are the two words side by side

Related Solutions

[Tex/LaTex] Font size and font type

You need to make the interpreter of the text as 'latex':

xlabel('\textbf{Example $a^2$}','Interpreter','latex'); % for x axis's text
ylabel('\textbf{Example $b^2$}','Interpreter','latex'); % for y axis's text
title('Example','Interpreter','latex'); % for title's text
h=legend('show'); % for legend's text, assuming you have given the strings for legend already in the plot command
set(h,'Interpreter','latex');

to your code for plotting. This will make the interpreter for the text you write in the axes and the legend appear formatted with latex not tex (which is default). So, you get the latex type text on the axes too. You can write anything you want the way you write in latex (like $a^2$, etc.). If you further want to change the font in the latex interpreter, you can add:

\fontfamily{cmtt}\fontseries{b}\selectfont test

and you can change the font to cmtt family, for example.

Hope it helps!

Edit:

In fact you can add:

set(0,'DefaultTextInterpreter','latex');

and set the default interpreter for all strings in matlab as latex. Look here for more on defaults:

http://in.mathworks.com/help/matlab/creating_plots/default-property-values.html#f7-18841

Edit 2:

I just realized you wanted to change the font size too. Here, add something like this in the arguments:

xlabel('\textbf{Example $a^2$}','Interpreter','latex','fontsize',14); % I've set the size as 14 here, you can set whatever you want.

This way you can add this extra term to the arguments wherever you want to change the font's size.

[Tex/LaTex] scalebox / resizebox shifts fraction component

In my opinion you don't really want \displaystyle, but neither you want \scalebox.

The size of \min and the other letters is right, it's just the summation symbol that grow too large:

\documentclass{article}
\usepackage{amsmath}
\begin{document}
\[
\frac{\sum\limits_i \min(A_i,B_i)}
     {\sum\limits_i \max(A_i,B_i)}
\qquad
\frac{\displaystyle\sum_i \min(A_i,B_i)}
     {\displaystyle\sum_i \max(A_i,B_i)}
\]
\end{document}

If you really want to go the \scalebox way, enclose them in \mbox:

\documentclass{article}
\usepackage{amsmath}
\usepackage{graphicx}
\begin{document}
\[
\frac{\mbox{\scalebox{0.75}{$\displaystyle \sum_i \min(A_i,B_i)$}}}
     {\mbox{\scalebox{0.75}{$\displaystyle \sum_i \max(A_i,B_i)$}}}
\]
\end{document}

The issue is apparently due to how TeX typesets fractions, putting aside the numerator until it decides the size; the assignments performed by \scalebox get wrong without this further level of boxing.

Or, maybe better, use \mfrac from the nccmath package:

\documentclass{article}
\usepackage{amsmath}
\usepackage{nccmath}
\begin{document}
\[
\mfrac{\displaystyle \sum_i \min(A_i,B_i)}
      {\displaystyle \sum_i \max(A_i,B_i)}
\qquad
\frac{\displaystyle \sum_i \min(A_i,B_i)}
      {\displaystyle \sum_i \max(A_i,B_i)}
\]
\end{document}

Best Answer

Related Solutions

[Tex/LaTex] Font size and font type

[Tex/LaTex] scalebox / resizebox shifts fraction component

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