P vs. NP asks: are these two classes actually the same? If P = NP, then every “hard” problem is secretly fast to solve; we ...

Little progress had been made in solving Ramsey problems since the 1930s. Now, researchers have found the answer to r(4,t), a longstanding Ramsey problem that has perplexed the math world for decades.

Five steps to ensure that you don’t jump to solutions by Julia Binder and Michael D. Watkins When business leaders confront complex problems, there’s a powerful impulse to dive right into “solving” ...

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How good is your company at problem solving? Probably quite good, if your managers are like those at the companies I’ve studied. What they struggle with, it turns out, is not solving problems but ...

Are refugees more likely to commit crime? Is the ‘loneliness epidemic’ real? Does a fall in the UK's healthy life expectancy mean what you think it means? The known unknowns of Ebola in the Democratic ...

Two vectors close vectorA vector quantity has both direction and magnitude (size). are parallel if they have the same (or opposite) directions. Their magnitude can be different. In the image to the ...