Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

Numberphile revived an ancient multiplication trick—halves and doubles—also called Egyptian or Russian math, where you repeatedly halve one number and double the other. After crossing out rows with ...

Abstract: The forest survey is a prerequisite or critical for ecological conservation. Spectral mixture analysis (SMA) is an effective method to extract the forest coverage and its changes; however, ...

Abstract: An improved variant of the precise-integration time-domain (PITD) method is proposed to eliminate the inverse matrix calculation and optimize the storage burden with the help of sparse ...

Inbox management, like so much else, is a necessary evil in our day-to-day lives. As such, it’s best handled with the use of a strict system, but those can be tricky to implement and stick to. Also ...

Gordon Scott has been an active investor and technical analyst or 20+ years. He is a Chartered Market Technician (CMT). Gordon Scott has been an active investor and technical analyst or 20+ years. He ...

Simple math equations grow harder when we're out of practice. As time goes on we forget the elementary rules of math and compound problems become more and more challenging. That's why a simple math ...

Learn the 3 times table and its division facts with the resources below. You can take a quiz, practise mental arithmetic and learn a 3 times table song. Need to practise your 5 times table? Then look ...