Every year, the countries competing in the International Mathematical Olympiad arrive with a booklet of their best, most ...

Teachers can use these questions to draw students out and get worthwhile formative assessment responses to guide instruction.

Working in secret for more than two years, a group of mathematicians has set out to resolve of the longest and most bitter ...

This task is an April Fools’ joke. In mathematics a circle is a two-dimensional figure and has no height. But this riddle isn’t about mathematics at all. Circles also appear in geography. The German ...

A library for OpenSCAD, filled with useful tools, shapes, masks, math and manipulators, designed to make OpenSCAD easier to use. Requires OpenSCAD 2021.01 or later. NOTE: BOSL2 IS BETA CODE. THE CODE ...

I make short, to-the-point online math tutorials. I struggled with math growing up and have been able to use those experiences to help students improve in math through practical applications and tips.

Abstract: In symbiotic radio (SR), the secondary system not only shares the spectrum and power of the primary system but also enhances its performance by providing multipath gains, fostering a ...

Abstract: The conventional magnetotelluric (MT) data inversion methods, such as the nonlinear conjugate gradient method, quasi-Newton method, and Gauss–Newton method and so on, can converge robustly, ...