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## Aligning Math Symbols

### LaTeX Forum: Math & Science

Add tags Information and discussion about LaTeX's math and science related features (e.g. formulas, graphs).
Hi there! I'm a beginner to Latex and need some help with aligning subscripts and superscripts in Maths. Here's what I have:

Code: Select all  •  Open in online LaTeX editor
 \documentclass{article}    \usepackage[utf8]{inputenc}  \usepackage[T1]{fontenc}  \usepackage{geometry}  \geometry{a4paper}    \usepackage[frenchb]{babel}    \title{Remaining Maths Homework}  \author{Herp Derp}  \date{15 November 2012}  \begin{document}  \maketitle  \Large Exercise 5.1 \normalsize\\\\Q1. (a) The graph of $f(x)$ has a domain $D \in [0,8]$, which is divided into four rectangles of equal base, $x = 2$. The actual area under the graph of $f(x)$ isestimted as: $\sum_{i=1}^{+\infty}{f(x)}$ and $\int_{x_0}^{x_1}$  \end{document}

And here's the output:

Output
example.PNG (17.14 KiB) Viewed 936 times

As you can see, the $\infty and i=1$ are to the side of the sigma function and not on top of it. How do I solve this?
learningtex

Posts: 2
Joined: Fri Nov 16th, 2012

TeX normally typesets summation and product symbols with the indices on the sides in "text" style math fields, but on top/bottom in "display" style math. You can select a math display with $...$, which is equivalent to the displaymath environment. If you want it in text mode, but still want display-sized symbols, use the \displaystyle command (there is also a \textstyl command). I provide an example of both here.
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     \documentclass{article}      \usepackage[utf8]{inputenc}      \usepackage[T1]{fontenc}      \usepackage{geometry}      \geometry{a4paper}      \usepackage[frenchb]{babel}      \title{Remaining Maths Homework}      \author{Herp Derp}      \date{15 November 2012}      \begin{document}      \maketitle    \Large Exercise 5.1 \normalsize    \\    \\Q1. (a) The graph of $f(x)$ has a domain $D \in [0,8]$, which is divided into four rectangles of equal base, $x = 2$. The actual area under the graph of $f(x)$ isestimted [sic] as: $\sum_{i=1}^{+\infty}{f(x)}$ and $\int_{x_0}^{x_1}$Option 1:    \\Q1. (a) The graph of $f(x)$ has a domain $D \in [0,8]$, which isdivided into four rectangles of equal base, $x = 2$. The actual area under thegraph of $f(x)$ is estimated as: $\sum_{i=1}^{+\infty}{f(x)}$ and $\int_{x_0}^{x_1}$ \\Option 2:    \\Q1. (a) The graph of $f(x)$ has a domain $D \in [0,8]$, which isdivided into four rectangles of equal base, $x = 2$. The actual area under thegraph of $f(x)$ is estimated as: $\displaystyle\sum_{i=1}^{+\infty}{f(x)}$ and $\displaystyle\int_{x_0}^{x_1}$ \\      \end{document}
kaiserkarl13

Posts: 575
Joined: Tue Mar 25th, 2008
Location: Knoxville, TN, USA

Thanks, \displaystyle was just what I wanted.
learningtex

Posts: 2
Joined: Fri Nov 16th, 2012