Mathematicians finally understand the behavior of an important class of differential equations that describe everything from ...

A Russian mathematician has developed a new method for analyzing a class of equations that underpin models in physics and economics and are considered "eternal" as they have challenged researchers for ...

Earnings before interest and taxes (EBIT) indicate a company's profitability and are calculated as revenue minus expenses, excluding taxes and interest expenses.

Editor's note: This is the second in a two-part series about the colorful "Colonel" William C. Greene, who is credited with developing mines in Cananea, Sonora. The years 1899 through 1906 were ...