How would I write up an integral symbol, along with the two numbers to the right of it, in LaTeX?

Question

Title says it all (I think). I just want to replicate math which would normally be done in Year 11/12, and got sorta stuck here.

Any help?

Answer 1

You can use one of a few options- the examples below are in in-line mathmode- if you're in display-math mode, then there's no need for \displaystyle

\documentclass{article}

\begin{document}

\begin{itemize}
  \item $\int_a^b f(x)\mathrm{d}x$
  \item $\int\limits_a^b f(x)\mathrm{d}x$
  \item $\displaystyle\int_a^b f(x)\mathrm{d}x$
\end{itemize}
\end{document}

For future reference, have a look at The Not So Short Introduction to LaTeX which covers this, and a lot more.