If true, the following conjecture of Thomassen [Th81] is a planarity criterion for a special class of graphs that involves only K 5. Recall that a planar graph on n vertices contains at most 3n-6 ...

A conjunction is a word, or words, used to connect two clauses together. Words such as 'although', 'because' or 'when' . A subordinating clause is a part of a sentence that adds additional information ...

An inherent principle of publication is that others should be able to replicate and build upon the authors' published claims. A condition of publication in a Nature Portfolio journal is that authors ...

This series will introduce you to graphing in python with Matplotlib, which is arguably the most popular graphing and data visualization library for Python. Here, we use plt.hist() function to plot a ...

Epsilon is a high-performance graphing calculator operating system. It includes eleven apps that cover the high school mathematics curriculum. You can try Epsilon ...

Origin contains powerful tools for all of your analytic needs, including peak analysis, curve fitting, statistics, and signal processing. To make data analysis more efficient, Origin supports many ...

WE have determined magnetic hysteresis loops by the ring-ballistic method for three different sheets of silicon-steel in an extensive range of values of magnetic flux-density Bmax. (Bmax, is the ...