Search Results for ""

The relationship x precedes y is written x≺y. The relation x precedes or is equal to y is written x<=y.

A prime field is a finite field GF(p) for p is prime.

A Proth number that is prime, i.e., a number of the form N=k·2^n+1 for odd k, n a positive integer, and 2^n>k. Factors of Fermat numbers are of this form as long as they ...

The norm n(a) of a quaternion a=a_1+a_2i+a_3j+a_4k is defined by n(a)=sqrt(aa^_)=sqrt(a^_a)=sqrt(a_1^2+a_2^2+a_3^2+a_4^2), where a^_=a_1-a_2i-a_3j-a_4k is the quaternion ...

In the American system, 10^(45).

Quicksort is the fastest known comparison-based sorting algorithm (on average, and for a large number of elements), requiring O(nlgn) steps. Quicksort is a recursive ...

A group of five elements, also called a quintuple or pentad.

A sequence produced by the instructions "reverse, add to the original, then sort the digits." For example, after 668, the next iteration is given by 668+866=1534, so the next ...

A quadratic field Q(sqrt(D)) with D>0.

A refinement X of a cover Y is a cover such that every element x in X is a subset of an element y in Y.