The internet is torn over an elementary-level math equation which left many scratching their heads. The viral math problem has X users stumped - but the answer comes from lessons learned in fifth or ...

Abstract: Nonlinear equations system (NES) arises commonly in science and engineering. Repulsion techniques are considered to be the effective methods to locate different roots of NES. In general, the ...

Abstract: A high-order spatial filtering-symplectic finite difference time domain (SF-SFDTD) scheme with controllable stability condition is proposed to solve the time-dependent Schrödinger equation ...

A New Booke of Merry Riddles was published in London in 1665 as the follow-up to Booke of Merrie Riddles, first published earlier in the 17th century. Both were anonymous, but it seems likely they ...

Brain teasers like these have become popular on social media, where users enjoy testing their problem-solving speed and sharing their results. Experts say such puzzles stimulate logical thinking and ...

After a storm, walk the perimeter of your home and look for cracks in the foundation. Also, schedule a roof inspection to make sure no tiles are out of place and keep your house painted. Paint is not ...

In January I wrote a piece titled “5 Physics Equations Everyone Should Know.” Lots of you weighed in with your own nominations, and there were plenty of good suggestions. So I’ve decided to do a ...

GCSE WJEC Equations and formulae – WJEC Solving 'algebraic' problems Solve, form and manipulate algebraic expressions including simplifying and rearranging equations. Solve using trial and improvement ...