How do I format the following equation in LaTex?

Question

What packages and commands do I need to format the following equation into a LaTeX document (ignore the background, I just need the equation)

Welcome to TSE. What did you try? – José Carlos Santos Sep 20 '21 at 20:43 — José Carlos Santos, Sep 20 '21 at 20:43

score 9 · Answer 1 · answered Sep 20 '21 at 21:29

9

The easiest way, I think)

 \documentclass{article}
 \usepackage{amsmath,amssymb}
 \usepackage{actuarialangle}
\begin{document}
$s_{\actuarialangle{n}i}=\frac{(1+i)^{n}-1}{i}$
\end{document}

answered Sep 20 '21 at 21:29

WinnieNotThePooh

3,008
1
7
14

The screenshot you posted doesn't correspond fully to the code above. For one, the code uses s, but the screenshot shows S. In addition, the math mode in use the screenshot looks to be \displaystyle, whereas the code employs \textstyle. Please fix. – Mico Sep 21 '21 at 20:10

score 7 · Answer 2 · answered Sep 20 '21 at 21:04

7

Something like this perhaps

\documentclass{article}
\begin{document}
[
s_{\smash{\overline{n}}\vrule,i}=\frac{(1+i)^n-1}{i}
]
\end{document}

answered Sep 20 '21 at 21:04

David Carlisle

757,742

score 6 · Answer 3 · answered Sep 20 '21 at 21:28

A modification of https://tex.stackexchange.com/a/140172/4427

\documentclass{article}
\NewDocumentCommand{\annuity}{mo}{%
  \hbox{%
    \vbox{
      \offinterlineskip
      \mathsurround=0pt
      \ialign{##&\vrule##\cr
        \noalign{\hrule}%
        &height 1pt\cr
        $\scriptstyle#1\hskip\scriptspace$&\cr
      }%
    }%
    \IfValueT{#2}{$\scriptstyle,#2$}%
  }%
}
\begin{document}
[
s_{\annuity{n}[i]}=\frac{(1+i)^n-1}{i}
]
[
s_{\annuity{n}}\quad s_{\annuity{p}}
]
\end{document}

How do I format the following equation in LaTex?

3 Answers3