Abstract: Permutation entropy (PE) is a widely used metric for quantifying the complexity of time series data. Recent efforts have extended PE to graph signals, resulting in the graph permutation ...

In Mathematics, there are no shortcuts to understanding, but there are definitely smarter paths to scoring well.

Amberlee Honsaker helps her daughter, Raegan, with math. Amberlee Honsaker remembers learning only one way to add or subtract in elementary school. It was the standard algorithm: stack numbers ...

After some serious number crunching, a researcher says that he has come up with a mathematical model for a viable time machine: a Traversable Acausal Retrograde Domain in Space-time (TARDIS). He ...

The real news of the President’s Eco nomic Report to Congress last week is not prosperity-for, by now, the whole world knows that the U.S. is fabulously prosperous, and expecting to be more so. The ...

Nagpur: A new north-south highway network would reduce the distance between Delhi and Chennai by 320km, reducing the time to reach the two ends of the country by 15 hours. The reduced distance and ...

Learn how to analyze motion graphs in physics, including position-time and velocity-time graphs. This video explains slopes, areas, and motion behavior to help you clearly interpret real physics ...

Dear Annie: I’m 54, and my boyfriend is 57. We’re in a long-distance relationship, 1,700 miles apart. It’s been going on for almost two years now. I’ve flown to see him three times, and he wants to ...

No matter how many times I’ve been told (or written about) the importance of a slow run, I cannot translate it into my training. This is not to say I am the fastest runner. My half marathon goal time ...