For four decades, a quiet boundary in pure mathematics kept a powerful theorem locked inside the safe world of finite quantities. Now a new result known as Sebestyen’s theorem has pushed that boundary ...

Carol M. Kopp edits features on a wide range of subjects for Investopedia, including investing, personal finance, retirement planning, taxes, business management, and career development. Andy Smith is ...

A classic math rule now handles infinity. New work strengthens the math behind physics and unbounded systems. % ...

Facebook is testing a controversial new limit. See the basic feature of sharing links that’s now locked behind an $11.99 paywall for some users. Facebook tests limiting free users to two link posts ...

Daniel Liberto is a journalist with over 10 years of experience working with publications such as the Financial Times, The Independent, and Investors Chronicle. Katrina Ávila Munichiello is an ...

You can upgrade your UBA account limit through the UBA mobile app or by visiting a UBA business office for higher limits. The documents required at the UBA branch ...