Outer Web | Explore

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You are here		totallydisconnected.wordpress.com Two questions and a story - totallydisconnected
\|	\|	mikespivey.wordpress.com The Sum of Cubes is the Square of the Sum \| A Narrow Margin	3.1 parsecs away Travel
\|	\|	It's fairly well-known, to those who know it, that $latex \displaystyle \left(\sum_{k=1}^n k \right)^2 = \frac{n^2(n+1)^2}{4} = \sum_{k=1}^n k^3 $. In other words, the square of the sum of the first n positive integers equals the sum of the cubes of the first n positive integers. It's probably less well-known that a similar relationship holds...	3.1 parsecs away Travel
\|	\|	mmph.wordpress.com TeX on the cloud \| Mathematically Minded Physicist	3.5 parsecs away Travel
\|	\|	The recent post on cloud computing and Google Docs made me ask myself whether Google Docs supports (La)TeX. It turned out you can insert LaTeX equations into your Google doc (as discussed in more detail e.g. here) but that's that for now. There exists a LaTeX Lab project aspiring to develop a web-based LaTeX editor...	3.5 parsecs away Travel
\|	\|	dominiczypen.wordpress.com Making critical graphs as regular as possible \| Musings on general topology and orderings	3.2 parsecs away Travel
\|	\|	Suppose you want to have a graph $latex G = (V,E)$ with chromatic number $latex \chi(G)$ equaling some value $latex k$, such that $latex G$ is minimal with this property. So you end up with a $latex k$-(vertex-)critical graph. It is easy to construct critical graphs by starting with some easy-to-verify example like $latex C_5$...	3.2 parsecs away Travel
\|	\|	educationechochamber.wordpress.com Blogs for the Week Ending 4th May 2014 \| Scenes From The Battleground	8.4 parsecs away Travel
\|		Reblogged on WordPress.com	8.4 parsecs away Travel