pub fn get_collatz_sequence(number: u64) -> Vec<u64>Expand description
Returns the Collatz sequence of the given number.
ยงExamples
let number = 13;
let answer = jabba_lib::jmath::get_collatz_sequence(number);
assert_eq!(answer, vec![13, 40, 20, 10, 5, 16, 8, 4, 2, 1]);Examples found in repository?
examples/math.rs (line 23)
3fn main() {
4 let number = 101;
5 println!("{} is palindrome: {}", number, jmath::is_palindrome(number));
6 let number = 1977;
7 println!("{} is palindrome: {}", number, jmath::is_palindrome(number));
8
9 println!("{} is prime: {}", number, jmath::is_prime(number as u64));
10
11 println!("The first ten prime numbers:");
12 let mut primes = jmath::Primes::new();
13 for _ in 0..10 {
14 println!("{}", primes.next().unwrap());
15 }
16 println!("---");
17 let v = jmath::get_primes_below(12);
18 println!("{:?}", v);
19 println!("---");
20 println!("divisors of 28: {:?}", jmath::get_divisors(28));
21 println!("---");
22 let n = 13;
23 let seq = jmath::get_collatz_sequence(n);
24 println!(
25 "Collatz sequence of {}: {}",
26 n,
27 seq.iter()
28 .map(|x| x.to_string())
29 .collect::<Vec<_>>()
30 .join(" -> ")
31 );
32 println!("---");
33 println!("5! = {}", jmath::factorial(5));
34 println!("---");
35 let n = 33;
36 println!("{}! = {}", n, jmath::factorial_bigint(n));
37}