- perfect integer
- мат. совершенное целое число
Большой англо-русский и русско-английский словарь. 2001.
perfect integer
Смотреть что такое "perfect integer" в других словарях:
Perfect fifth — Play (help· … Wikipedia
Perfect square — may refer to: Mathematics * Square number, a number which is the square of an integer * Square (algebra), an algebraic expression that can be factored as the square of another expression * Perfect square dissection, a dissection of a geometric… … Wikipedia
perfect number — n. a positive integer which is equal to the sum of all its factors, excluding itself: the first four perfect numbers are 6, 28, 496, and 8,128 … English World dictionary
Perfect number — In number theory, a perfect number is a positive integer that is equal to the sum of its proper positive divisors, that is, the sum of its positive divisors excluding the number itself (also known as its aliquot sum). Equivalently, a perfect… … Wikipedia
Integer sequence — In mathematics, an integer sequence is a sequence (i.e., an ordered list) of integers. An integer sequence may be specified explicitly by giving a formula for its nth term, or implicitly by giving a relationship between its terms. For example,… … Wikipedia
Perfect totient number — In number theory, a perfect totient number is an integer that is equal to the sum of its iterated totients. That is, we apply the totient function to a number n , apply it again to the resulting totient, and so on, until the number 1 is reached,… … Wikipedia
Integer (computer science) — In computer science, an integer is a datum of integral data type, a data type which represents some finite subset of the mathematical integers. Integral data types may be of different sizes and may or may not be allowed to contain negative values … Wikipedia
perfect number — noun : an integer (as 6) the sum of whose divisors including 1 but excluding itself is equal to itself 28, which . 1 + 2 + 4 + 7 + 14, is a perfect number compare imperfect number * * * Math. a positive number that is equal to the sum of all… … Useful english dictionary
Perfect ruler — A perfect ruler of length n is a ruler with a subset of the integer markings {0,a 2,cdots,n}subset{0,1,2,ldots,n} that appear on a regular ruler. The defining criterion of this subset is that there exists an m such that any positive integer kleq… … Wikipedia
Perfect hash function — A perfect hash function for a set S is a hash function that maps distinct elements in S to a set of integers, with no collisions. A perfect hash function has many of the same applications as other hash functions, but with the advantage that no… … Wikipedia
perfect number — Math. a positive number that is equal to the sum of all positive integers that are submultiples of it, as 6, which is equal to the sum of 1, 2, and 3. Cf. abundant number, deficient number. [1350 1400; ME] * * * ▪ mathematics a positive… … Universalium
