an infinite series in which the terms are coefficients times successive powers of a given variable, or times products of powers of two or more variables.
a mathematical series whose terms contain ascending positive integral powers of a variable, such as a0 + a1x + a2x² +…
A sum of successively higher integral powers of a variable or combination of variables, each multiplied by a constant coefficient.
mathematics The powerset of a set S is the set of possible subsets of S, usually written PS. (1994-11-08)
noun, Mathematics. 1. the collection of all subsets of a given set. noun 1. (maths, logic) a set the elements of which are all the subsets of a given set
noun 1. a political arrangement in which opposing groups in a society participate in government
noun 1. any self-propelled shovel for excavating earth, ore, or coal with a dipper that is powered by a diesel engine or electric motor. Compare (def 2).