The original version of this story appeared in Quanta Magazine. Imagine that someone gives you a list of five numbers: 1, 6, 21, 107, and—wait for it—47,176,870. Can you guess what comes next? If ...

Mainstream economics argues that the tax system is the best tool for reducing economic inequality. In fact, “predistributive” ...

Abstract: This study explores the stabilization problem of nonlinear systems subject to parameter uncertainties, time-varying delay, and data-packet dropouts. An interval type-2 Takagi-Sugenofuzzy ...

Can you chip in? The Internet Archive is a nonprofit fighting for universal access to quality information. We build and maintain all our own systems, but we don’t charge for access, sell user ...

Finale PrintMusic is a comprehensive music notation application that allows users to create, edit, and produce high-quality sheet music. Designed for musicians, composers, educators, and students, it ...

Abstract: This article is concerned with interval estimation for discrete-time linear systems with unknown disturbances. An improved proportional-integral configuration is built for an iterative ...

Qalculate! is a multi-purpose cross-platform desktop calculator. It is simple to use but provides power and versatility normally reserved for complicated math packages, as well as useful tools for ...

As one of the world’s foremost medical universities, KI accounts for the single largest share of all academic medical research conducted in Sweden. KI also offers the country’s broadest range of ...