From ancient Greek philosopher Plato to Neo, hero of the dystopian film fantasy The Matrix, humans have long pondered the true nature of reality. Can we trust what we see, taste, touch, smell, and ...

Build an empire, pilot a jumbo jet, or try your hand at industrial power-washing with these engrossing sim and sandbox games. In 2014, I began my career at PCMag as a freelancer. That blossomed into a ...

There's a vast world of PC games that let you tackle the mundane in creative and surprisingly enjoyable ways. Build a PC, run a pizza shop, or become a bee with these strange and wondrous titles. In ...

Central charge, a key quantity in conformal field theories, is crucial in the study of critical phenomena, yet its measurement has remained elusive. Here, the authors extract the central charge of ...

David Harper is the CEO and founder of Bionic Turtle. He is also a published author with a popular YouTube channel on expert finance topics. Samantha (Sam) Silberstein, CFP®, CSLP®, EA, is an ...

There's an addictive quality to a government game that's unlike the rush you get from shooters or RPGs, although the escapism is no less real. Whether you're setting economic and trade policies, ...

Several measurement techniques used in the life sciences gather data for many more variables per sample than the typical number of samples assayed. For instance, DNA microarrays and mass spectrometers ...

Sean Ross is a strategic adviser at 1031x.com, Investopedia contributor, and the founder and manager of Free Lances Ltd. A balance sheet reveals a company's assets, liabilities, and equity at a single ...

First-order derivatives: n additional function calls are needed. Second-order derivatives based on gradient calls, when the "grd" module is specified (Dennis and Schnabel 1983): n additional gradient ...