Ulam spiral

短语

词形变化

Ulam spirals 复数 Ulam spirals

释义与例句

n.
  1. 1.

    A graphical depiction of the set of prime numbers, constructed by writing the positive integers in a square spiral and specially marking the primes.

    数学

词源

Devised by mathematician Stanislaw Ulam in 1963.

来源：wiktionary