2

The letters in my equation are shrinking and I'm trying to revert that:

my attempt

I'd like them to appear as follows:

from the book

If you notice you can see that the parenthesis' size on second image vary like 3 times while on the first equation it doesn't change much. In the first image the fraction W over h are shrinking down how do I make them not to shrink?

\begin{equation}
\Delta L = 0.412 \cdot h \frac{(\epsilon_{ref} + 0.3)\left( \frac{W}{h} + 0.264 \right)}
{(\epsilon_{ref} - 0.258)\left( \frac{W}{h} + 0.8 \right)} \label{for:fringes}
\end{equation}

I'd like to know how to change the equation's font to mach the on in the second image.

Thank you very much.

1

Use the following command,

\begin{equation}
\dfrac{\Delta L}{h} = 0.412 \dfrac{(\epsilon_{ref} + 0.3)\left( \dfrac{W}{h} + 0.264 \right)}
{(\epsilon_{ref} - 0.258)\left( \dfrac{W}{h} + 0.8 \right)} \label{for:fringes}
\end{equation}
2

Use package amsmath (mathtools), \dfrac and \text:

\documentclass[12pt]{article}
\usepackage{mathtools}
\begin{document}

\begin{equation}
\Delta L = 0.412 \cdot h \dfrac{(\epsilon_\text{ref} + 0.3)
         \left( \dfrac{W}{h} + 0.264 \right)}
         {(\epsilon_\text{ref} - 0.258)
        \left( \dfrac{W}{h} + 0.8 \right)}\label{for:fringes} 
\end{equation}

\end{document}

enter image description here

  • 1
    although not strictly necessary, it would probably be a good idea to put braces around the entire {\text{ref}} subscript. – barbara beeton Jul 1 '15 at 12:42

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.