Excel errors aren't always a bad thing. Sometimes, it's just because there isn't data in the relevant cells yet, and some other times the error itself is the data ...

The introduction of dynamic arrays triggered the biggest change to how we work with Microsoft Excel formulas in years, if not decades. They allow a single formula to spill multiple results into ...

Abstract: Trust region (TR) and adaptive regularization using cubics (ARC) have proven to have some very appealing theoretical properties for nonconvex optimization by concurrently computing function ...

Abstract: Forced oscillation (FO) source identification prevents the impending threat to power system security. This article proposes a methodology to accurately estimate FO frequency for source ...

Children between the ages of 3 and 6 years old should undergo vision screening at least once a year, according to new recommendations published in Optometry and Vision Science.