Imaginary numbers can seem confusing at first, but they play a powerful role in mathematics and real-world applications. This guide explains what imaginary numbers are, why they exist, and how they ...

Graph crossing numbers quantify the minimum number of edge intersections in any planar drawing of a graph, an essential parameter in both theoretical and applied graph theory. The study of crossing ...

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. A Social Security number (SSN) is a numerical ID for U.S. citizens and residents to track ...

The Powerball jackpot for Monday’s drawing is $33 million - less than a week after someone won $1.8 billion on Christmas Eve. Saturday's Powerball jackpot was $21.1 million after a ticket holder in ...

Were you a lucky winner? Check your tickets for lottery draw games in West Virginia here. 4:59 a.m. ET Jan. 3 *Based on iOS download data collected by Sensor Tower. Jackpocket is the official digital ...