Last month we told you how to compute the actual compression ratio of an engine. But that's just one of many basic computations that often confront the automotive enthusiast. Consequently, we've ...

New system of math learning named ACE-ArithmEcole helps promote the use of arithmetic formulas to school children at an early age, reports a new study. Novel intervention can promote the learning of ...

This monthly journal, begun in 1950, is devoted entirely to research in pure and applied mathematics, principally to the publication of original papers of moderate length. A section called Shorter ...

We give necessary conditions for a set to be definable by a formula with a universal quantifier and an existential quantifier over algebraic integer rings or algebraic number fields. From these ...