lbann::number_theory Namespace Reference

Functions
int	prime (int n)
std::vector< int >	prime_factors (int n)
std::vector< int >	balanced_factors (int n, int num_factors)

Function Documentation

balanced_factors()

std::vector<int> lbann::number_theory::balanced_factors	(	int	n,
		int	num_factors
	)

Get balanced factorization of n. Factors are sorted in ascending order. The factors should be as close as possible.

prime()

int lbann::number_theory::prime

(

int

n

)

Get prime number. Indices are zero-indexed, so prime(0) is 2, prime(1) is 3, and so on. Results are cached for future function calls.

prime_factors()

std::vector<int> lbann::number_theory::prime_factors

(

int

n

)

Get prime factorization of n. Prime factors are sorted in ascending order.