Changes: Sum (LaTeX symbol)

Latest revision as of 14:59, 5 March 2022

In LaTeX, \sum is rendered as $\sum$ inside math mode. The difference between the summation operator \sum and \Sigma, which generates the capital letter $\Sigma$ , is that \sum appears larger, and that it supports the limits to be displayed below and above the symbol.

The following example illustrates the difference between \sum and \Sigma.

Markup	\sum_{n=1}^\infty\frac{1}{2^n}=1
Renders as	$\sum_{n=1}^\infty\frac{1}{2^n}=1$

Markup	\Sigma_{n=1}^\infty\frac{1}{2^n}=1
Renders as	$\Sigma_{n=1}^\infty\frac{1}{2^n}=1$

@@ Line 1: / Line 1: @@
+{{Symbol}} The difference between the summation operator <code>\sum</code> and <code>\Sigma</code>, which generates the capital letter <math>\Sigma</math>, is that <code>\sum</code> appears larger, and that it supports the limits to be displayed below and above the symbol.
+The following example illustrates the difference between <code>\sum</code> and <code>\Sigma</code>.
+{{Markup|1=\sum_{n=1}^\infty\frac{1}{2^n}=1}}
+{{Markup|1=\Sigma_{n=1}^\infty\frac{1}{2^n}=1}}
+[[Category:Sum-class symbol]]