The meaning of Sigma in statistical analysis is a function of whether you use the upper or lower case of the letter. The uppercase use of sigma denotes a summation while the lowercase represents a ...

Mathematicians finally understand the behavior of an important class of differential equations that describe everything from ...

Experts gave AI 10 math problems to solve in a week. OpenAI, researchers and amateurs all gave it their best shot ...

The currents of the oceans, the roiling surface of the sun, and the clouds of smoke billowing off a forest fire—all are ...

A mathematical trick speeds up seismic calculations for earthquake simulations and could revolutionize earthquake preparedness.

These low-floor, high-ceiling problems support differentiation, challenging all students by encouraging flexible thinking and allowing for multiple solution paths.

Jason Chun is a CNET writer covering a range of topics in tech, home, wellness, finance and streaming services. He is passionate about language and technology, and has been an avid writer/reader of ...

Cast your mind back to 2013 and Sigma had just brought out its 18-35mm f/1.8 DC HSM | Art lens – the world’s first zoom with a fast, constant f/1.8 aperture – and was set to revolutionize the ...

Abstract: This paper presents a fourth-order discrete-time delta-sigma modulator that employs a two-stage floating inverter amplifier (FIA) in the first integrator. The first integrator utilizes a two ...